I'd contact DNZ and explain the problem before I'd shim the base. For some reason when we buy a new car we are more than willing to get the dealer to make it right but with firearms and related items we seem to want to fix their problem if in fact it is their problem.

Last edited by Dave_in_WV; 08/24/15.
The Karma bus always has an empty seat when it comes around.- High Brass

There's battle lines being drawn
Nobody's right if everybody's wrong