I own all of Harri's models - great bipod. My personal preference is based upon hunting a wide variety of game and terrain, from open, rolling country to steep heavily wooded mountains. Sometimes I do not use a bipod while heavy timber hunting because they get hung up on limbs and stuff while you have it slung over your shoulder. The springs make a wonderful twanging noise when this happens.

The bottom line for me is; when I have a bipod on the gun, I want to maximize my choices for shot setup. I want to be able to lay prone, sit behind the bipod, or angle it for steep terrain shots. The only model Harris makes that works for most all situations I get myself into is their largest one. I don't know the model number, but it has two extension settings (which gives it a total of 3 positions), and it pivots. The pivot feature is manditory for me. I have had a few that did not, and I can tell you there is a dramatic performance difference, it's not just slightly better.

When in open terrain with high sage brush or tall grass it is critical that you have a tall bipod if you want to shoot off of it. I have found myself squeezing the legs together a bit on occasion to get a couple three more inches of height to clear stuff. I also believe that a shooting rest has to be attached to the gun, much like a quiver is necessary on a bow. This isthe low maintenance philosophy, because anything that requires additional time and energy to operate reduces the window of opportunity to take game.