Some people don't feel the Corbin is comfortable, others do.
I'm in the former group. If I was going to get a custom saddle, I'd get one from Sargeant. The RT could even stand a Russell Day Long John Deere Tractor style seat.
What I'd like to know is, has anybody gotten the OEM seat modified with the fuel door. I've seen some posts where people have made a simple cutaway to allow access to the filler cap, but I'd prefer something a little more stylish.
I like the look of the Corbin fuel door, but I'm very happy with the stock seat. Did my IBA on the stock seat, so it suits me well. When I'm alone i don't mind lifting the seat, but if I have a passenger with me (something that is looking increasingly unlikely) a fuel door would be a real plus.