if it helps ..ive had a airhawk now for 8 years ..its been on a lot of different bikes ..the one to go for is the pearshaped one ..

its had two punctures easily repairable ..patch no glue
it works and makes a bad seat a good one
..things move on and when your bike moves on your 300 quid seat moves with it
the airhawk is still thre when you need it

it works very well for me i find it extreamly comfy ..idont find the xt seat too bad but when i head on a long trip its one of the first thing i put on the bike and its paid for itself many times over ..i cant fault it it does a really good job for me
the key to it is to use very little air ..sit on it realease the valve until it feels right keep inflation to the minimun otherwise its like sitting on a water bed
you will be surprised just how little air is needed ..when you move the air moves to a different pod so there are no pressure points irrispective of how you sit ..
the picture below shows it fully inflated [deflated ] thats al i need in it ...when my fat ass gets on it it redistrbuts the air ,..so you are just a couple of mls fron the seatbase
it must have done idunno 70/80 000 by now and has proved very durable ..the seat cover shows no sign of wear still

same seat in every picture