Torque is a difficult feel to describe in words.
I've sometimes shown people by saying "Gimme your finger", then pushing it the right amount.
Then I hand them the allen key because the length of the key is critical.
You've got a good start because you asked.
My first advise is 'Tighten the screws way too loose'.
Second is this:
Set the scope on the bottom half of the rings and place one top half.
Then gently tighten those screws until you can no longer rotate the scope.
I think you'll be surprised at how little torque keeps the tube from rotating.
Put the other top half on with the same light hand.
Check the screws every time you shoot for a while so you know they aren't backing out and you'll be good.
Bear in mind, none of this comes from firearms experience.