Of the options listed my choice would be the adjustable HTG, the Game Scout looks good though.
Put in a order 2 months ago, for my 7 RM LR hunting rig, and it's gonna ride in a fully adjustable Bakes special though, not a small and lightweight stock but excellent for prone, and usable for offhand shots, serves my purpose well and one of my favorite McM stocks.
Now my hunting terrain is basically just open mountain slopes with a couple small fields of forest ,and 99% of my shots are done prone with a bipod or sling, from steep angles, rarely i get to shoot at animals in less then a 45 degreee tilt.
The stock being a bit on the heavy side does'nt really bother me, a bit of extra weight don't hurt and makes the rifle more stable, and shooting in the windy conditions that are here most of the time it's just an advantage.