It'll be later next season that I get to prove out my next seat design. It'll have a center groove, or valley. about 2" wide and 1.5" deep running the length of the rider's seat portion. The main shape of the seat will be the dished cradle style common to Sargent, Corbin, etc. Under the vynil I'll have gel pads for the "sitting bones" portion of the pelvic bone. Hopefully that will address the air gap/airflow issue, and sitting/compression issues. Vital too, is to get the seat dish "angle" just right to rotate the hips into the right position for sitting comfort.
That's my plan for my 07RT.