I recently purchased a Browning F5 Tornado bow. I am drawing 65# and shooting 26.5" arrows with 100 gr. heads. I also purchased 6 Easton carbon arrows. I weighed each arrow on my electronic scale and they are all within 3 gr. with the field points attached. When outfitting the bow I installed a whisker biscuit B2. I noticed when shooting my arrows for the first time the biscuit would slightly deform the vanes. This doesn't seem to effect accuracty as the bow is very accurate and quiet. I have primarily only shot three of the six arrows. Yesterday I pulled the unfired arrows out of the case and began to shoot them. The biscuit is not deforming the vanes and these arrows will impact 6" higher at 40 yards. I reweighed the arrows with the field points just to recheck and my first weighing is correct. I was wondering if the biscuit needs a break in period? I do have nocks that rotate. The vanes are not hitting the dark colored fibers on the bottom of the biscuit. I understand these fibers are to support the weight of the arrow shaft. I have never used the biscuit before I have always shot a TM Hunter style rest. Any help will be greatly appreciated.

I don't shoot a whisker biscuit, but did you just switch from aluminum to carbon? I know the opening is different sizes for both.

No I didn't. I purchased the biscuit the same day I bought the bow and bought the one for carbon shafts. Thank you for the enquiry. I did call the archery shop today and they said to shoot my bow this afternoon and if the problem is still occuring to bring it in and they will correct it if they can. They were also helpful with all of my other questions. They didn't simply say that it was my shooting.