I'm running a Gel now, and had to cut some of the foam from underneath the pad to make it feel right. As stock, it was kind of round....like sitting on a barrel. And way high. This made the knees feel better, but I like being down in the bike more when in the twisties. The modded seat is better than the stock plank...but has me thinking about aftermarket, just don't know if they'd be enough better to justify the cost. Have done 270miles straight and could still walk afterwards...so the modded Gel seat works OK for now I guess.