I have a day six test pack coming this week. I am excited to get my hands on these and do some testing. My initial impressions with the company from a customer service aspect are outstanding. I emailed with a few questions and Bryan wrote me back in less that 10 minutes and was very informative and helpful.
I have not been happy with the .166 shafts I have tried so for, but I am very hopeful for these. my first complaint was the components (or lack there of). I personally liked the deep six system better that the GT half outs, I hated the GT half out system, got wobble after a ~couple weeks of shooting, also had one break off right behind the collar upon impact on an elk (durability is my 2nd complaint). My complaints with the deep six inserts were the small ferrule size on the broadheads, crappy broadhead selection (although getting better now) and it was very hard to get my arrow weight where I wanted it. I tried all kinds of things from adding double inserts, to double inserts with a #8finishing nail etc. and got my weight where I wanted it and had (in my opinion) a better system than the GT half out system. But I just never did love the deep six broadhead selection and the idea of smaller ferules. After that I switched to the ethics stainless steel system. Components had much better tolerances and were much tougher than the GT, but I still found the Pierce shafts leaving something to be desired with regards to durability by the time I got my total arrow weight up to where I wanted it.
My second complaint with the .166 shafts is as I stated earlier the durability. I feel that the pierce platinums and the injections I shot were too light and brittle and not designed to ever be a heavy tough arrow. Sure the FOC was great by the time i added enough wt to them to get the total weight i was after, but FOC doesnt mean $H!T when your arrow snaps off at the insert when you hit a broadside elk mid ribs.
I have a couple Pierce Platinums left over that I will test side by side with these once I get them. I should be able to test both arrows at nearly the same total arrow weight.
I don't care much about super high FOC or any of that. I just want the toughest reasonably heavy (~500gr.) hunting arrow possible. Really hopeful that these new Day Six are the answer to that. Like I said earlier, I don't think that the other .166 shafts were ever designed to be heavy hard hitting arrows, and thats what I wanted. That's admittedly where I went wrong. That being said, It does sound like the Day Six are undoubtedly designed to be heavy hard hitters, so that with the combination of their new components has me very eager to put there through the paces.
I will post back with my thoughts once I get my hands on them and am able to shoot them.