. . . . it is Between your Butt and the Bike. (pun intended)
As far as "stinking", lets not go there.
I am not sure what kind of disagreements your butt and seat are having, or what you consider a "long trip" to be, but see if you can sit on any of the others that you are considering. A dealer may also have the BRP Comfort Seat installed on a floor model or a demo, that will give you an idea.
I think seats are like helmets, you just never really know until you have tried them out for a while under a lot of conditions. Too bad you can't rent one.
You may also find that things like handlebar risers or highway pegs will change your position and ergonomics - bad seats can become good and good seats can become uncomfortable or your butt is now good though your back is hurting. There are lots of options, but you are the biggest variable.
Tom
(my butt likes the stock seat)