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Welcome to the church of Chromiumoxidology, brother-Tony :nj

I sourced my leather from Tony, but it was a part of a much bigger order for (Oakville) Dave (mindspin), that included a hanging strop and who knows what else Dave got lol. The 3.125x12.000" marble...

Chromium oxide will improve your shave significantly. If you're satisfied with your shave results, leave it as is and refresh periodically.
The other option is to do another 10 strokes, test-shave,...