Sounds like the beach, shoal, reef, or jellyfish will decide for you anyway!!!

Having said that, I can see your point Jamie. The Stealth has dagger rudders so where I sail (Thames Estuary) I've had to learn where all the likely shallow areas are and just be very careful. For example, I now know that I can't get round our club West mark until an hour either side of HW. This means that in the early part of a race (especially if it's the first mark) I don't pin the rudders down, and approaching that mark I just lift both of them (and the boards) just slightly to be on the safe side. The advantage of daggers though is that you can still steer at speed with no problems at all with them part raised

Unfortunately though, to date I've destroyed one rudder stock and on a second occasion ripped both gudgeons out of one transom - easily fixed!!! That's the downside of learning where the shallows are.........