Russell Day Long did it for me. I tried a lot of different seats and didn't think it was possible to ride more than 2 hours without butt burn. after the seat I was able to ride from Evanston Wyoming to Home in one day without any pain.
I am 6'4" and 320 on a good day, lol, so similiar in size. I read ALOT of reviews and checked the bank acct. I ended up with the Mustang super touring seat with back rest. It made a huge difference from the stock seat and both me and the ol' lady are happy.
The seat adds height and moved me back from the tank. The wings have a suspension type support that provides coverage for the riders and passengers buttocks making the ride great and comfortable
Upgraded my stock seat to Sundowner. Better comfort for passenger, but shoved my nuts into the tank.
Got a Hammock, and not only was the ride and comfort much better but if gave me some comfort room by moving me back just enough.
Side benefit is that we no longer get that jarring shock up the spine if the suspension bottoms out. Can easily ride through 2 tanks of fuel....ahhhha.