[BP-Revo]

I think the bushings need to be kind of chamfered.

When the arms bend, the bushings must flex in relation to a perfectly straight pin. If the bushings were made rounded in the inside, sort of like an O-Ring, where the center touches and the rest bends away, it could flex without damaging the pin, but also prevent any play, as the bushings could be any material from 6061 or 7075 T6 to Stainless or Titanium.