I agree with Steve. If you are at the dock or on the hard you should be fine. Loosen the uppers and lowers on the opposite side till they are just hand tight, release all tension on the back stay, release any vang tension, disconnect the boom from its topping lift and set the back of the boom down on the companionway. Run a halyard over to a stanchion base on the side you want to check. The mast won't go anywhere
