Both important things to look for when setting up a scope.

Being left handed and often shooting righty rifles, I have flattened the bolt handle on some of my rifles to make operation easier/less cramping by the eyepiece. Various setups/mounts work better or worse. I have no need for "DG" purposes, but if somebody did, the whole setup should be well thought thru as what might look or sound good on paper in the gun shop might not work too well in the field.

During deer and winter varmint seasons, hunting here takes place in such dim light there is no way irons can even be used many times. I always have a couple iron-sighted rifles setup, but the conditions are such that they get used for "kicks" and under very wet; sleet/rain/snow conditions when a scope is a pain to keep mopped.

A scope essential in such dim light conditions? Absolutely.