OK, I am a ways from this issue but it is on my mind. It doesn't appear that any of you are using them. I'm probably OCD about outfitting but I like a snug fit. In my SOF the Masik provides contact for my thighs. Of course, I have to slide in with legs straight.
Also, everyone talks about sit boards to not disrupt the flow of the water but don't do anything about your feet. I sit on a thermarest pad on top of some 1/8" neoprene that extends to my foor rest. That way I slide in without catching the ribs and the 2 layers covers the keel so I don't feel it. I know that those points of contact "show" through the skin in the water. How much effect do they have?