Envision two guys holding opposite ends of a spark plug socket. One twists and the other opposes the twist. Now envision that guy opposing the twist has the benefit of using an 18 inch long socket wrench, and instead of holding one end of the socket, he holds the wrench handle. The guy twisting the socket will now hove one heck of a hard time working against the guy holding the handle.

In this analogy, the man resisting the twist is the rifle rest and the guy twisting the socket is the rifle action torquing under fire.

Just like making the forend wider reduces sand bag deformation, so would moving the action up in a stock, away from the bag, instead of being on level with it. Such a design increases bulk and weight, but to my thinking necessarily reduces, not increases, torque, and therefore deformation of the sand bag resulting in annoying tilt.