I think Nerd explained that the physics simulations only interact with the convex hulls, in one of his training videos.  Or maybe I dreamed it.  :unsure:  Wherever I heard/read that, I thought it was coming from one of the Inside People or Beta Testers, someone who would know.  It does make it difficult to get any decent collisions from the simulator.  :sad:

For the case with the bowl, maybe you could fake it to get the desired effect.  Cut a copy of the bowl into wedges whose convex hulls, taken together, might approximate the desired bowl shape for collisions.  Then run the sim using those proxy props.  If the sim will still collide with hidden props, you can hide the proxies and keep the bowl visible.

The True Joy of Endless Poser Workarounds is that they help us exercise our creativity, and sometimes maybe help us invent new curse words.  :lol:

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Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.