Here is another off the wall method, or not. I always put both feet on the board, that way I can pull my butt up close to the board keeping the center of gravity very close to the board. It works well for light wind, and for heavy wind, I just keep my by butt further away for the board (legs straighter). You can do the same with one leg, but using the strength from both legs from a deep squat is easier than one. I never did buy using the free leg to kick the water to get up on the board.
I am 6' 1" and 173.
Since my front foot is further up the board, I don't have any issues with rounding up.