Once out on the track the most noticeable difference was how surprisingly stiff the foam is, yet it feels like it has more cushioning than other seat foams. It is almost like factory suspension for your butt and back. Usually with stock seats, when attacking flat corners and sitting on the edge of the seat to get maximum traction, it’s easy to really feel the seat base through the foam. Not so with the Think! foam, which seems to have its stiff and cushioning properties throughout the whole seat, even on the edges. When seat-bouncing jumps out of corners, the Think! foam really absorbs a lot more of the load than a stock seat’s foam can. Seat-bouncing also shows how much the carbon-fiber seat base’s stiffness helps. The base gives the seat a more precise feel by eliminating the flex that a stock plastic base can have. Yes, it’s noticeable.