I have an Ultimate BigBoy on Deerslayer and a Russell on Jade. Both have BBT fwd controls. Both have driver and pass. backrests. The points above are valid on the backrest discussion. However since I have pass. pillion on both, the backrest mounting to the pillion for the Russell is no issue for me. The Russell is head and shoulders above the Ultimate for long distance comfort. However the Ultimate might be described as better looking - don't care on that long as my butt is happy. I have done Iron Butts on both many times - my butt likes the Russell better. It also cost more but they are both spendy.
The Ultimate took months to break in. The Russell - no, was great from the first day.
The height and reach are no issue with both since I fitted the highway pegs to match my legs on each seat. Also the risers - length to the bars. Both bikes are more comfy than my wing.
I have had other seats on both, before - OEM, Mustang, Rood saddle mod. Both of the current seats are better except the Rood was close.
BTW I also have a Corbin Gunfighter on George - in fact two of them, in black and ostrich tan. Nice looking but no comparison to the other 2 on comfort.

