Something I do is have several ring heights in my gun tool box. I have Vortex rings in Low, Medium, High, and extra high for example.
It's not such a big deal for an AR platform and you know you will need fairly high rings for the AR. But on rifles I may be sitting on prone for 10 minutes or more it's nice to have various heights to play with to find the perfect one for you that can be used. It's pretty hard to crank your neck with inappropriate mounting height for your particular body.
I will throw a set on and aim the gun for 10 minutes straight and find the one that is most comfortable for me.