Re: base installation
If the base and screws are cut right, they should all line up straight and you shouldnt need to lube anything. I have never used lock-tite on my base screws either.
The instructions you get should tell you exactly what to do. I have heard of bases that are off and it is difficult to line things up, but from what I have seen it is usually the gun that is not square. If your gun holes are not set straight and squared, you will tweak the gun and cause problems.
If your gun is squared, even lower priced bases, like EGW will fit your gun perfectly.
Good Luck,
Nate