I 16 Sided Cylinder subtracted from another has not crashed the system - yet. I will be more careful with physics and small intersections.

Now the problem seems to be from time to time the ball bounces off a corner at high speeds. As well objects seems to scale walls like elevators. I am going to mess with setting and hope to turn down some of the abnormalties.

I think from what I have read so far on the forum is to make sure the forces are kept low, and use trace to make sure something doesn't go too close to an object.

Off to fine tune once again........