So, I've read a bunch about how it's best to use an x-pattern to strop a razor on the 4-sided paddles from Tony. What does that mean? Is an x-pattern the way shown in the instructions that came with my paddle? Or is there something else involved? I've looked around and can't find a specific explanation beyond the obvious of what it is. Is there a video of someone stropping in an x-pattern I could see?