OK- here are some really bad photos, but I hope they get the idea across. Dianna says the foam in the stock seat id open cell, and she had never seen stuff like was in there before. What a surprise. So anyhoo- she uses closed cell foam with a thin top layer of memory foam. In my case (as always) she filled in the "scoop" and dug out the back some so the seat would be flat flat flat. IMO, scooped seats maede out of soft foam feel good fopr a half hour and then you want to kill yourself. This seat is quite firm, but I can sit clost to the tank of gointo a full tack and it's all good.
She also does a little scoop/indent at the back so you tailbone has room.
These pictures are of the bike on a center stand, so the seat will actually be more horizontal whilel sitting on it.
This is basically the same thing Sargent Seats does without all the cost and rigamaril.