rigid bodies and animated passives
there seems to be no way to have rigid bodies not penetrate animated passive rigid bodies...
the same collision geometries which work perfect when static create great problems as soon as they are animated. even with the "best?" settings like
Step Size 0.001
Collision Tolerance 0.001
Tesselation 1000 (does it make a difference on polygons?)
end result is always penetrating geometries 
any ideas?
everything starts and ends in the right place at the right time.