Haptic Pen getting stuck

[vNicolef]

Hi there,

I created a 3D object in 3DSMax that's basically 2 spheres overlapping and textured to look like a mole. I then link the mole to an avatar's face and allow the user to feel the mole. However, every so often the haptic pen gets stuck in the intersection of the 2 spheres that make up the mole. What can I do so that the pen doesn't get stuck in this area? Is there a mesh I should apply to the whole face and mole?

Also, the pen gets stuck on some of the avatars' mouth, but not all of them. Is there a way to fix this too?