Carbon arrow gurus. Trying to keep arrow weight under 600 gr

[JamesKerr]

I would go with the Arrow Dynamics trad shafting. If the only thing stopping you is the fact that the larger shaft might impede penetration than just take a file to the insert and create a taper on it. Arrow wraps work fine on them you just have to be a little more careful when installing them. If you are dead set on using a parallel carbon shaft I recommend going with an Axis shaft 300 spine full length with the aluminum insert and footed with a piece of aluminum shafting. You still might not be perfect but I would think you would be close