Another member wanted me to post my seat project, so here goes...
First, I want to say something: scooters are built for shorter people. Period. The manufacturers target consumer is much shorter than me. I dont expect them to make scooters to fit me, I expect them to fit 90% of the market that they are in... and that leaves me to adapt myself. No problem. In fact, bicycles (of which I have ridden about 80k miles, mountain and road) have nicely adjustable seats. I figure that if I can sit on a bicycle seat for 100 miles, I ought to be able to adapt to a scooter!.
Anyway, in that vein, let's consider a modern high end bicycle seat. It is oriented so that when you sit, your sit bones contact the seat. The crotch area is cut out for comfort. It is tilted ever so slightly back. I want to duplicate this... somewhat.. on my seat. So what I did is: I took closed cell foam and cut it in the shape of my air hawk knockoff pad. Yes, a standard $10 walmart camping pad. A single pad cut about 7 layers. I took these 7 layers and put them on the seat, forcing the back edge against the back. At that point, I applied duct tape to fix them in place. When I make this permanent, I will use something like Gorilla glue to glue up the foam pieces into something permanent. Also of note is that most pads come rolled, and have a curvature that they want to follow. USE THIS to help the cushion fold around the seat (legs). After creating the wedge, I wanted to create a seat pan to put my air hawk. I modeled it somewhat after a bicycle seat. One modification that I still want to make is a cut out for my tail bone. I noted that on my last ride! Anyway, there is no right or wrong here. This is EXTREMELY CHEAP. .... the knockoff air hawk is the most expensive thing at $27. I used a razor blade to cut the foam. I estimate that this increases leg length by about 3.5".