I'm heading down the keys for a few weeks with the skiff and am concerned about the number of lower unit thefts in the past few months. Skiff will be kept on the trailer at the rental house when not being used. Islamorada, Marathon and Big Pine have been hit pretty hard this winter Anyone here use a lower unit lock on their motors that they can recommend? Looking for the ones that replace a bolt on the lower unit. Yamaha 60hp 4S.