Sorry my bad, I was thinking of the older Sako mounts with two screws in the base, the optilocks have only one screw and clamp to the base on one side so please ignore all reference.
The nail varnish still works on the threads and I put a witness mark on the dovetail to mark where the mount clamps to it, so slide the mount up to the witness mark and cinch it up, it gives a pretty good return to zero.
Again, apologies for the bum steer, theres 2 screws on my Leupold bases too….