Weird tuning issue, please help

Im not sure what a French tune is.

Shooting the ripcord SOS rest.

If it is fletch contact it happens with both 3 and 4 fletch

Modified French tuning sets centershot and horizontal placement of pins. It is done at very close range and by adjusting the rest and sight pins.

Im no expert but I would say that centershot issues would cause fishtailing of the arrow instead of corkscrewing. Wouldn't hurt to check it anyway. Check out the nuts and bolts of archery on archery talk.
 
If you are getting a good tear in paper at close range then it is an illusion. They aren't going to develop bad flight down range.
 
Just do this and dont worry about how it "looks".
1. Tune bow to manufacturers specs. (time cams, tiller, proper brace height, correct string and cable lengths, ect)
2. Install rest according to manufacturers suggestions. ( for drop aways make sure the cords are not too tight. They just need enough pressure for activation. Your cams could come out of time with too much cable pressure at the shot.
3. Pick appropriate spine arrow.
4. Paper tune with a bare shaft until a perfect "bullet hole" is achieved. (if you have to vary significantly from center shot then something else is wrong. Like cam lean, weak limb, or maybe your shooting a brand that has tuning challenges. Alpines always gave me a headache.
5. Fletch with desired vane. Shoot through paper to make sure added vane weight didnt throw the tune off by changing the spine.
6. If you get perfect paper tears from multiple distances then your ready to sight in and try broadheads. I like to paper tune with bare shaft at point blank distance and work back to about 7-10 feet achieving a perfect bullet hole with a bare shaft. Then do step 5.
7. Shoot a broadhead that spins true and you shoot be spot on.

Doing all these steps with a bow that has no issues has worked for me 100% of the time.
 
Got it figured out. First time bareshaft tuning a bow!

Ill try n shoot longer distances outside tomorrow, if they still fly erratically ill know its f letching contact, hopefully this fixed that issue!

Should have my deep 6 Slick Trick 100 gr mags here shortly to try out as well!

Just meant that I have great eyesight and I saw it corkscrew. Plus I shot an arrow with 4 white blazers so I could discount the optical illusion caused by a different colored vane
 
Strange it would paper tune and then start corkscrewing but you never know. The SOS could be dropping too slow with the bow and arrow combination. That rest is designed to provide support for the arrow for a longer amount of time. Before you start changing things I would try some broadheads because that is the ultimate goal.
 
Have t gotten to shoot more than 20 yards, not sure yet if the corkscrewing has stopped.

Hoping, but if it is its got to be fletch contact with something I would assume
 
Well? How is it now?

I personally never had very good results with cable driven rests, specifically the Rip Cord, constant fletch contact on the arms of it.
 
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