I am by no means an expert but I alternate between 36 and 50 or 60 grits for profiling depending what i have on hand. I like the 36, but will use up old 50 and 60 grit belts for profiling once they stop cutting bevels the way i would like. I may use a 36 occasionally to set a bevel, or to start a flat grind on thick stock .250 or over, but the majority of my bevel work is done with 50 or 60 grit belts. on 3/16 or 18 stock, all beveling is done with those belts. After the initial bevel, i move to either a 100 grit blaze or 120 vsm ceramic, then 220 vsm or trizact A90, A45, A30, then an 800 grit cork polishing belt. I really like the Trizact belts for their long life and the even finish they provide. Also once they glaze a bit i turn up the speed, and hit if with a wire brush and it freshens them right back up. I have tried the Norax belts and dont really like them at all. For bevels i also prefer my 50 and 60 grit belts to be zirc rather than ceramic as i find they fracture easier and continue to cut longer without glazing.