Yes, James, you've almost got it. Now just imagine a "scything" sort of motion as the razor travels (of course with the back of the razor leading). The point starts at the top edge of the strop and curves down and across ending near the bottom edge, just further up, or down, the strop. It is an X where the two strokes meet in the middle, but an X with elongated and slightly curving arms. If that makes any sense.

Scott