How do you guys level scopes?

[grayfox]

The only problem I have is making sure I tighten down the rings equally. If you go too far on one side it can cant the scope in the mount. I use a torque screwdriver and start way low.

yes. Use a torque wrench.
Back and forth on the screws, cross-over and back X-patterns, little at a time. watch the bubble level on the scope as you tighten each screw by each amount.
Also, I first do one ring, one pair of screws, to get it level and snug. then the other ring, one set of screws likewise. once both pairs of those are snug, do a "catch-up" on your remaining screws... then do the back and forth, cross over method a little at a time for all screws. Keep the bubble centered.
IIRC the bubble tends to move slightly away from the one you are tightening.