Low vs Medium vs High scope rings - PROS/CONS?

[Bill_Rights]

non-optical considerations

Along with Shawn Dodson who says

The scope must not only clear the barrel but you should also be able to operate the bolt handle (on a bolt gun) without it colliding with or riding against the scope. This may not be evident until after the scope and been mounted and adjusted in the rings to allow for proper eye relief.

I found another issue with low rings, and that is, low rings increase the chance of scope bite to the top of the eyebrow. If you have to tilt your forehead too far forward to get the eye down onto the optical axis of the scope, your eyebrow gets closer to the top of the eyepiece bell. Head posture should be as upright, front-to-back, as reasonably possible to avoid this (some forward tilt of head is OK).