horse butt strop question

[Ken Werner]

I just recently acquired a small piece of horse butt leather. Any recommendations regarding:

smooth side vs rough side up?
use plain or with green rouge?
glue to smooth surface or leave both sides available?

thanks in advance.

Ken

[harry strasil]

FWIW, I use both sides, after stoning I strop the wire edge off on the rough side, then turn over and finish on the smooth side which has brown jeweler's rouge on it.