I have a Davis back saw (private brand of Disston) that I like the feel. My only complaint is that it seems to cut slow; yes it is sharp. The saw is 12 in. long, 13 ppi, filed ripe with a 15 deg. rake angle (measured using my Veritas file holder).
I want to reduce the rake angle to 10 deg., at least as a 1st step. Is this changing the rake angle seemly sharpening it with the new rake angle. Will I need to take multiple passes. Am I completely missing something here?
Thanks for you help.