So far one of my only complaints about my Grom is the seat...I'm becoming obsessed with shifting my ass around trying to locate the sweet spot (maybe there isn't one) after only a couple of miles into a ride. For now, I think I'll have an upholsterer add some memory foam or gel and see if that does the trick. Will also try wearing padded biking shorts as a short term solution. It is excessively hot and humid here, and I know that might be playing a role, but still want to make this my top priority mod. Anyone seen decent aftermarket seat options or have advice on increasing the seat's comfort?