temp...I bought the same one a few years back and really like it...The reason I bought the taller one is two fold, I'm 6' 5", so I felt that I needed the extra height and I have some peanut and cut corn fields that I just don't have a decent tree to climb, so I use a low beach chair and sit by the side of the field, if sitting on your butt, you probably don't need the longer version, but the beach chair I have puts your butt 3-4 inches off the ground, it works well in this application...I'm able to shoot laying down with it in the shorters position by raising my torso off the ground a bit...I also have a Outers Shooting Rest that I use when I'm benching a rifle, so I don't need a bipod for that use...