This has been an interesting discussion for me. Because of the bone structure of my face, even with low rings I rarely can get a firm cheek weld. If I use Talley X-Lows, it's better, but then I'm always running into ocular issues with different rifles/scope combinations. This has been helpful.

"An archer sees how far he can be from a target and still hit it, a bowhunter sees how close he can get before he shoots." It is certainly easy to use that same line of thinking with firearms. -- Unknown