I just bought a whole new bow and a got a round rest for it and I shoot carbon in it with no problem maybe you need a differnent rest. However my arrows are for 60-70 and since I'm only 14 I can't pull that i use them with a 40 pound that I might put up a little. My carbons are monsterback they are ok and have good power. Since I can loose arrows they are a little cheap, but they work incredible. Anyway, I think you should get a round rest, I don't know the name of it, but it is nice. So to rap this up, I think you need a round rest and some better carbon arrows, you can get carbon arrows like mine at dicks sporting goods, and cabelas. I hope this solved whatever your problem was.