As said above the ACC's are very slightly larger in diameter, and is lighter in relation to same spine. The A/C Superslims are nearly the same in weight as an Axis or Beman Black Max. Personally I have found no problems with the HIT system or splitting at the tip end. I have shot 3D and am hunting with the Superslims this season. I'll be buying another dozen next spring.

After what I have put my A/C Superslims through this year, I honestly can say I see no reason to shoot an all carbon arrow.