I have here a sphere that seems to gain an awful lot of velocity when hitting a convex portion of a map entity -- if I roll it off of a ledge, it just pops off into space.

I've checked out the "Events and Physics" section of the manual; tried using various masses (larger spheres seem to be affected more than smaller ones); played with ph_iterations (0 seems to cause the most problems, but that may be my imagination); mucked with ph_setcorrections (small values mitigate this, but that causes other problems); and so forth, but to no avail. Is there a solution to this?

Thanks.