I am looking for a drivers backrest. I tried a friends and it seems to high and to close even on the farthest and lowest settings. It is the Harley one that fits in the rectangular mount with three settings for height and the backrest has a spring loaded set of bars to fit into that mounting bracket. I see Harley also sells one with a gas shock that has a 30 degree swing to it by pushing some kind of lever that is attatched to a cable. Anyone know if that setup is any better.