Nope, I've not had a problem. I'd still rather have the hole filled with a screw than sitting empty.
Just received the Leupold mount.
It has five holes, and five screws.
and it was $25 less than the comparable Talley mount.
Nice! Would you be so kind as to throw a caliper on the rear end of the base and measure the height? Would be interesting to see if the Leupold is any lower than the Talley.