I have a MacGregor 21 with a solid rudder and I sail in shallow water, so I'm in the process of building a kick up rudder. My question is, do you folks use cotter pins in the pintles to lock your solid rudders into place or do you just drop the rudder in and let gravity do the work? I want to sail this weekend and I want to be able to yank my rudder out if I run aground, but I don't want to lose my rudder! When I get my kick up done, this will not be a concern any more. (Note: I'm a new sailor and I sail in the Indian River Lagoon in Florida. The channel is deep, but getting out of the channel can get you into water that is 2 or 3 feet deep in seconds.)