Search:

most epoxies are softer than stone and will wear faster so the epoxy shouldn't make you lap more often if that is what you are asking.

will it get gunk (technical term) on your razor? I don't...

you should be able to feel if you are catching anything on the crack.

The abrasiveness of the stone should be the same on both sides.

A few things come to mind:

I can't be certain that...

Pics of the stone and the problem would be helpful. I am having problems visualizing what is happening.

BTW, So from Japan-tool says lapping is a good idea when honing razors. I am still...