Re: Prefered Bipod height for prone shooting
Ideally, one does want to be as low and solid as possible, but body types vary and cover trumps all. I'd agree that the body build is probably the most important thing if muzzle clearance isn't a problem.
For actually hunting from a wide variety of cover and positions, I'd opt for the taller bipod, knowing it will be most often used to get muzzle clearance. For shooting tactical/precision matches, I carry both.
IMO, the most stable positioning comes with getting the butt properly into the shoulder, which drives consistent cheek weld and recoil recovery. The rear rest should then stabilize the butt at the right spot, then the bipod adjusted to get on target. Fine elevation adjustments can then be made with the rear bag.
The beatings will continue until morale improves.