Collisions & Margins

Sometime in my app, I'm seeing collision events reported to my callback between 2 objects that should be colliding because they are on opposite sides of a mesh.

I remember from 1 of the tutorials there was a "margin" value in Blender that had something to do with collision detection. (if i remember correctly...)

Can any body please explain what the "margin" has to do as it relates to sio2 ?

thanks!

Its more something to do with Bullet check the Bullet SDK Manual and search for collision margin.