So I have searched and read and watched Youtube video's and still have a ?. I prefit the EGW rail to my Vanguard and what I noticed is a small gap in rear corner with screws in the front. So I checked with screws in the back and there was a little bit more of a gap in the front than the back. So do I tighten the back screws and bed only the front and hope I dont screw up the 20moa base? Or bed both front and rear and only slightly tighten the 2 inside screws? Thanks guys.