We are getting the hang of sailing our 336 and are also figuring out the 'nuances' of the boat. Speaking of which.....When we raise the main we do so around a winch and must transfer the main halyard to a cleat so we can use the winch for the jib. The line goes through a spinlock clutch. Whenever we release the line from the winch and transfer it to the cleat--with the spinlock closed--the main halyard slips back a good 3", and thus the sail goes down a bit. Perhaps this is inherent in the system since we have to transfer the line and there's such a load on it?