Sorry for slow response al.
The 440AIS series do not have both adjustmemnts, but I believe that the lower priced 412 series (That Tad and others have and love by the way)do have both. The 440 AIS series is a gas/air assisted shock and only has the infinite preload adjustment, the dampening is supposed to be automatic. Works for my lardbutt just fine.
Give Tad (Bluesbass) as shout, he's up in Quebec now but will be back next week. He can give you a good idea of how well they worked on his big trip.
