Spock 540: Clew First

The blessing of the Clew-First variation of the Spock 540 is you do not have to flip the sail and grab the other side of the boom. In other words, your hands are on the correct side of the boom for the duration of the move. So are your feet for that matter, until the very end, after the move is pretty completed. Some windsurfers believe this move is easier than the standard Spock 540.