I plan on taking my wensel woodsmans down to a 20* bevel instead of the stock 30*. I have a table top upright belt grinder with an adjustable metal work table that should work real slick.

I know I need to go slow, and cool the blade often to avoid messing up the temper, but if I want a 20* bevel, is that per side of the blade, or would each side be 10*?

Does my question make any sense?