I' m sure your going to get more info on this subject than you can digest. I just switched from aluminum to carbon at Christmas. I only had minor sight adjustments. No problems with bending ever again. The only problems I' ve noticed from arrow to arrow on the set I got is that the fletching isn' t perfect which is the same on aluminum. I' m not sure where all the talk of tuning comes from. Buy the weight (spine) that matches your draw weight and you should be fine.