I've finished relieving some area for the bedding compound and am left with this puzzle:



All the good instructions I've been able to find use pillars, but I don't have those and don't plan on getting them. My dilemma is this: how will I put the bedding compound down, place the receiver, and screw in the action screws without getting the action screw holes in the receiver FULL of bedding compound? I'm puzzled! What am I missing here?