FWIW --

If _my_ straight razor 'skips', I assume that it isn't sharp.

My test (works for me, may not work for you) is to try shaving my arm, with the edge of the blade about 1/8 - 1/4" above the skin. If it catches hairs and cuts them _in the air_, I'll shave with it.

As several other people have asked, in different ways:

. . . Why do you think your straight razor is sharp?

Charles