Rolling coin Physics

I the used the mesh editor to
regenerate the “Convex Decomposition”
using, 64 hulls, 32 max hull verts and
100,000 hull precision. This generated
a very smooth simple collision which
works almost as good as a sphere.

Impressive. I’ve always found the collision generation mostly disappointing! Apart from that, wicked - glad to hear you got it to a satisfactory state.