I added the Seat Concepts Tall seat today. I decided to go with the Tall after some research and a few private messages with
@DRugerH. It was the right choice.
I am 6'1", 235 lb / 107 kg. The stock seat was already sagging after 900 miles, giving me the feeling of sitting perpendicularly in one of those rubber playground swings. I was sitting too low in the bike and my legs were cramped.
Only 1.5" taller, the SC Tall seat makes it feel like a different bike. My legs and hips are at the correct ergonomic angle (I have a 34" inseam), the seating position is far more spacious. The seat is a few inches wider and the widest part of the seat extends toward the tank slightly more than the stock saddle, giving additional thigh support. I was worried that the seat may be too flat, but that is not an issue. I added the 40 mm risers as well. These help keep a bend in my arms.
The SC seat is pretty easy to install, though making the cover fit over the very back of the foam does not come easy. There is too much material and it is difficult to avoid wrinkles in the cover. I tried to move all of the wrinkles to the back where the pillion seat would cover them anyway. It looks okay for my first attempt at upholstery!