Hi Matt,

Welcome to the forum...

A photo of the notches and bearing edge would be real helpful. And yes, if the notches you're talking about are thin/small, it will be no biggie to use a good epoxy as a filler. Use clear epoxy and tint it to the color of your kit using standard -transparent- (not opaque) artist oil paint from a tube. You can also tape playing cards tight against the inside and outside of the shell to act as a mold/barrier for the epoxy. When you pull the playing cards away, you won't have to sand the surfaces flush, they will already be flush.

Lets have a look-see at the bearing edge you're talking about. You can't work vistalite the way you work wood. If the bearing edge on your vistalite needs dressing of any kind, best to send it to the pro's at Presicion Drum where the have the proper bits and jigs to do the job right. Don't try to tackle something like cutting bearing edges on vistalite by yourself. If you're not using special bits and procedures, you'll badly damage, if not outright shatter, the shells.

John