Fun Bruno Delgrange in the semi deep seated Partition model. Larger front and back blocks, 2 billets for less bulk under the leg, calf knee rolls and seat.
Seat measures true at 17". Standard flaps measure 12 1/2" long by 13" wide - however these are cutaway flaps, so comparable to 13" in other brands. The cutaway design offers less bulk under the calf allowing more contact.
Dot to dot is 4 3/4" with standard panels (non specialized).