I'm going to wax and tune my board this weekend. I got an iron, wax, gummy stone, 88/90 bevel guide, and a plastic scrapper. I just want to sharpen the edge for now and not change the angle, how do I know what bevel came with the board from the factory? Looks like 0 and 90 to me, btw the board is a GNU CHB series. Also on the side edge, the sidewall goes all the way up to the metal edge. When I file the edge, I'm going to rub up against the sidewall too, is that normal or do I need a sidewall cutter too?