Mother and I went to the MOCO and sat on several bikes until we found the seat we both liked,it was the Pillow Top with matching detach backrest could not be more pleased.
Well my 08 ultra the stock seat sucked,bought 2 diff corbins,too hard, bought a mustang seat ,pushed me forward,had my seat redone at MEAN CITY ,actually 3 times,the seat is finally broke in and feels great,longest ride 737 miles.so i would say mean city did the trick.
I've used a lot of seats/saddles over the years on various bikes. I bought a used Russell Day Long off this board, and it's the best seat/saddle that I've owned. Might not be the prettiest, or the "coolest", but most certainly the most comfortable.. JMO...........
My boy has a Sundowner on his '06 RK and absolutely loves it. I haven't heard many reports on the air adjustable HD seat, but you may want to investigate the hammock seat too.