Hi enn0x,
meanwhile I stumbled across those settings but a had given up on finding anything useful at that point so I didn’t bother to try.
Apparently I really am the first one to use such deep-down parameter fun as i stumbled over a typo in an assertion test which caused only negative axis to get past the assertion (rdb fixed it already).
I’ll give it a another try as soon as i get back on the initial problem. And thanks for that explanation about how to translate damping/stiffness into bullet. It’s really useful comming from an engineering background.