I’ve been shooting aluminum shafts since I started shooting, I started with 2018’s with 125 gr. tips, and have since gone to 2117’s with 145’s. I do plan to switch to carbons eventually, but I need to run out of aluminum shafts first, or my wife will lynch me. I think aluminums are easier to tune than carbons, but that’s just my opinion. I don’t have much experience with carbons yet, either, though.