Another advantage of a fixed axle as far as I see it, is that if you tweak your chassis it is unlikely stop your weapon, as a fixed axle will remain rigid. But it you had bearings in the chassis they could lock up because of the axle miss alignment.

(Btw everyone : Im still building and around, its just taking awhile to get my two new spinners built and working without shearing parts. So ill be appearing at events soon enough.)

Chris - ^_^