Yes, the CX150 heritiage cut 29" will weight 350 grains with the regular insert where as the GT3555 only weights 250 grains with regular insert( no points on either arrow}. I then use a 125 grain BH with 75 grain steel insert and the CX150 comes out at 550 grains. You adjust the weight of the BH insert for what weight you want to end up with. The spine on both are about the same and I cannot tell the difference in shooting. The CX shaft is tougher with 7 layer wrap where the GT has 5. This is what I heard. Good shooting! Ken