screw holes too narrow and tight for the screws to turn and tighten properly. In order to be able to tighten the anchor bolts at all, I had to hold the anchor with pliers and press down on the bolt with enormous force. I got tired of widening the holes a bit with a drill, but that didn't work because going to 9/64 would render the holes unusable. After a lot of effort I was able to install it. Now that brings me to the really important part. When trying to attach pads that I specially bought, I get the same problem in those places. I was able to insert them about halfway before they really started to stick, and the increasing pressure caused the screws to fatigue and snap into the channel. Now that I can't attach the overlay, they're completely useless. Refund requested from Revain.