Your board was even prior to waxing I assume. You then put some wax on there, scraped it off and now it's un even? If that is the case, you need to continue scraping.
edit: Technically, you could also continue polishing it until it is even. You just want to take every bit off wax off as possible to make polishing easier. Someone correct me if I'm wrong. I have my own technique I use involving a few brushes as well and it's served me fantastically.
Last edited by tdn; 12-23-2012 at 05:53 PM.