In my search for comfort for my bad back Ive tried a few seats, what I ended up with raised me up pretty good but its a comfortable ride. The Harley Hammock seat is by far the most comfortable seat I have tried. I only use it for long trips or when the wife is riding. I have a sundowner as well and when broken in it is comfortable, but my wife doesnt ride as much as me and after a half hour of riding was getting sore. No issues with the dual hammock seat for either of us. I also switched out the stock shocks for ohlins and put progressive monotubes in the front, got a riders back rest and installed the 10" bars so I don't have to reach anymore.
Everything together cost a lot but I did it over time and it was worth it.
When I just ride around time I strip the bike back down to a street glide but when I have the wife or want comfort this is how it looks.
Even in street glide mode it rides better with the front and rear shocks and bars, and I keep the back rest in my saddle bag in case I need it!