wwag,
I assume your meaning the 300 shaft, do you think they'll be to stiff? I figured the Axis 300 shaft set up the same way I'm shooting my 340 Evolutions weigh almost exactly the same.(483) I just figured I could afford to drop a little. I'm not unhappy with the weight of the evolutions, my 02 MM zings them along at about 263fps, so the Dually ought to do pretty well with them, I want more consistancy from shaft to shaft than the Evo's. I'll just have to try some diff. things and see what works.