Scope mount screw backing out, more than one mount...

[liber]

I have one of the 2" extended mounts that you make. Another person in my rifle club also has one. It seems that both of our mounts have a problem with the screws backing out.

The screws that back out are the screws that hold the rings tight on the scope tube.

Is this a known problem?

Can you tell me what the recommended torque is for the screws?

I was using 20 in lbs with a Fat Wrench, but had seen that 15 in lbs. was recommended for the screws that hold the mount on the picatiny.

You use very tiny screws on the mount, possibly the smallest I've seen on a mount.

Can you provide the recommended torque for the screws? Your site says 15 in lbs.

EDIT: I really don't want to put loctite on my scope mount. That just seems wrong. How do others deal with this problem?