Personally I use aluminums still. Although they are the straightest and most consistant material which can be bought for arrows at this time. I still wonder if that straightnesscorrelates into target accuracy when the amount of oscillations which is given off my aluminums is taken into consideration.I have not used carbonsforabout6 yearsnow. Imoved away from carbonsmainly because at the time I could only get them in light weights and spine consistancy was a real issue. But I know that things have changedsomewhat in the past six years and a more consistant spine has been achieved in the diameter of the arrow and heavier weights are now being offered. Youcan even get themtapered.At some point I may have to give them another try. They are a bit expensive though, and I go through a lot of arrow in a year.