Hamskea rest problems?

Lheise88

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Jan 24, 2017
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I'm having some serious issues with this rest. Bow is a carbon defiant 34 at 80 pounds with black eagle spartan 250s. Everything on this bow has been checked multiple times. Now, I've been through two launchers with this bow and I'm on my third. Purchased the last two at 20 bucks a piece. Problem I'm having is wear on the rest. The launcher will wear on the right side quite a bit. More then I think is normal. Hamskea says it's ok wear from the pics I sent. Centershot is spot on to factory specs and paper tuning says everything is good. I'm just a tad nock high as well. Started over this last time by redoing everything taking rest off and starting over for the third time. Shoots good through paper but now my fletchings are hitting the launcher. 30 shots through it and there is already wear on the launcher. I don't get it. I wanna use this rest because it's a tank and everyone says they never have problems, but I'm about to just give up. Any ideas?
 

OR Archer

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Just so I understand correctly. Are you getting wear from fletching contact or just from drawing across the teflon cover?
 
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Lheise88

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Before it was only the launcher wear. Today the fletchings are hitting now too. I adjusted the limb attached string a little looser and that seemed to take care of the fletchings contact.
 

Slim Jim

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I had the same problem with the exact same setup when I bought my bow. My bow shop said that everything looks great and it's shooting bullet holes paper tuning. After about a month of fletchings ripping off and horrible groups, I finally checked my nock height and it was 3/8" low! About 14 twists on my d-loop and it has never shot better


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Lheise88

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I shoot the bow a lot. 5 times a week at least 100 arrows each time If not more. I know after the initial break in my nock point was out and my arrow was running downhill about 3/8. But since then it hasn't moved at all. Going to take it to Scheels tomorrow I guess and let them look at is. Being is im out of town working.
 
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I am far from a bow tech but I have two fairly fast HOYT's. My first bow gave me fits with a string driven / activated rest - qad ultra. I was getting wicked fletching strikes and groups all over the place.

That bow and the new one are wearing limb driven rests. One a vapor trail limb driver and the other a hamskea. No issues. Maybe try setting up your rest as limb driven.
 

sim22mie

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I have the same rest. I had some fletching contact on initial setup. I just played with how much I stretched that little coil. I think they say 1/8" after blade is all the way down. Is your cord tied in the correct spot on the limb? I know with the newer past parallel bows, it becomes even more important.
 
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I noticed some wear on that teflon too when I was running one. I just cut it off and put mole skin.


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OR Archer

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I put felt on the launcher. Prevents premature wear and quiets the rest. Also I don't set them up with the spring. If it stretches in the field your rest is not going to function properly. I set them up similar to how a TT Smackdown attaches. I'll post pics of how to do it tomorrow when I get to the shop. It's a more bulletproof setup and works great.
 

goph707

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Well this is odd, I just put that same rest on my Hoyt and I'm having the same problem as you. However I have a small left hand tear I can't seem to fix for the life of me. Where are some of you guys mounting the cable on the limb?
P.s sorry. Not trying to hijack your thread.
 
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I put felt on the launcher. Prevents premature wear and quiets the rest. Also I don't set them up with the spring. If it stretches in the field your rest is not going to function properly. I set them up similar to how a TT Smackdown attaches. I'll post pics of how to do it tomorrow when I get to the shop. It's a more bulletproof setup and works great.

Yes please post this. I just ordered a hamskea to give it another go


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Lheise88

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Well this is odd, I just put that same rest on my Hoyt and I'm having the same problem as you. However I have a small left hand tear I can't seem to fix for the life of me. Where are some of you guys mounting the cable on the limb?
P.s sorry. Not trying to hijack your thread.


Hey no worries there man. I just wanna get this figured out. With thousands wrapped up in hunts coming up I want to be ready. And it's about 3 inches from the end of the limb to where my string is tied to the limb. Pics would be great if a different way to set up as well. Glad I'm not the only one having trouble out of this thing.
 
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It's set up as limb driven now. Sorry should have specified.

Again, I ain't a bow thingy guy but when I switched to a limb driven rest I had to play with the "timing" of the rest by moving the attachment point of the launcher string back and forth. With the HOYT bow (that was a 2015 carbon spyder turbo) the limbs are beyond parallel so the sweet spot can be closer to the riser as opposed to closer to the cam or limb tip. I started where the forward edge of the cam crosses the limb and moved it back and forth until I got the right timing. The sweet spot actually turned out to be underneath the rubber air shock, stealth shot thingy. I backed it off a bit toward the cam and tied it off. I used duct tape as a temp hold and once I found the spot I glued the retention pad in place. Once I got it dialed that rest has been sweet.
 
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Brendan

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I use this rest on my Hoyt.

Mount the cable closer to the limb tip, and the launcher stays up longer. Mount it closer to the limb pocket, and it drops sooner. It helped me to mount a couple of the rubber pads and play with the mounting point on the limb and the tension of the spring so that the limb cord would barely relax at full draw so I know the launcher is full up, but also at brace - the launcher had enough spring tension on it to stay completely down.

You can also change the spring tension for the launcher (not the spring on the cable - internal to the rest). I set mine so that it was just enough to reliably keep the arrow up and not bounce the launcher. I've thought about ditching the limb cable spring as well as it can stretch over time if you put too much tension on it.
 
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Lheise88

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I appreciate it guys. I'm going to move the little sticky pad a little closer to the riser. It's about 3 inches from the end of the limb now. That might help it drop a little faster. Move it a couple inches closer to the riser? Any idea on the wear part. I just can't hardly believe that launcher would wear that fast. Or why it's always wearing on the right side so much.
 

Brendan

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So - mine wears too. So far, I feel like it's gotten to a point where it's slowed down and hasn't affected my tune. Something that's bothered me a little, but I basically put it out of sight, out of mind for now. I may try the stainless launcher blade with felt in the future.

With that said - mine wears dead down the middle. If it's wearing off-center, you might have a tuning issue. Have you bare shaft tuned or broadhead tuned the bow yet? Where's center shot? I believe I'm running 13/16" off of the front of the riser right above the rubber shelf pad.
 
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Lheise88

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I'm running 13/16 center shot. I tried broad head tuning once and my groups were like 8 inches at 30 yards with my slick tricks. That's when I realized the string had stretched and my arrow was running downhill 3/8". Since then I have not. I'm not a bow tech and the guy who set it up seems knowledable with twisting cables and such but I think it's possibly out of tune. Idk. Going to have it looked at by someone else tonight. Frustrating with a $2500 set up.
 
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I use this rest on my Hoyt.

Mount the cable closer to the limb tip, and the launcher stays up longer. Mount it closer to the limb pocket, and it drops sooner. It helped me to mount a couple of the rubber pads and play with the mounting point on the limb and the tension of the spring so that the limb cord would barely relax at full draw so I know the launcher is full up, but also at brace - the launcher had enough spring tension on it to stay completely down.

You can also change the spring tension for the launcher (not the spring on the cable - internal to the rest). I set mine so that it was just enough to reliably keep the arrow up and not bounce the launcher. I've thought about ditching the limb cable spring as well as it can stretch over time if you put too much tension on it.

This.
Brendan has a good grasp of this rest. I've pretty much came to the same conclusions. I used a draw board to adjust where I attached the cable to the limb tip.
One thing I'll add is that when I was using the teflon coated launcher blade. I was getting so much contact I actually bent the launcher blade down. Take a look at your blade from the side and make sure you didn't bend it like I did. I use the stainless-felt one now. Its thicker than the teflon one.
 
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