a new answer
OK for your second question, “Should there normally be a fair amount of water in foot well paddeling in calm water”
I’d answer yes for most boats, if you are sitting still. Many of these boats drain once you get moving, and many do not, but I have never been in a boat where I kept my feet dry.
I also forgot to mention the Sit on Tops I’ve used and use:
Current designs - Kestral 140 - Older Style - very dry seat in clam water
Wilderness Systems Tarpon 160 - Dryer feet than the Kestral but wetter seat.
RTM Disco - Wet Feet but pretty dry in the seat, Wet drains quickly out of foot well with just a little boat speed.
Bic Scapa - Pretty dry boat but not as stable or fast as either of the above boats
Cobra Expedition - Wet feet and wet seat in calm water, Easy to drain lots of water out of cockpit by edging while paddling, also venturi works once you are over 4 mph, small cockpit does not hold a lot of water.
Dagger Kaos - What cockpit? I’t more like sitting on a surfboard. Quite often I’m just happy to be right side up in the thing. Sometimes during a harder bottom turn water jet up in the air from the one large scupper hole.
I’m 230# so your results will be much different in calm water and then we’ll both be wet in any kind of chop.