I agree but also think that if mechs just keep fixing a problem it will never be corrected as the manufacturer will never be aware they even have a problem. Once I received an entire pallet of crowned 8ft slate from AMF. I could have fixed them but I just paid them good cash for good product. I rejected them, my buddy has them now for patio blocks. To me, new product should be good and within the standard that was promised.
What would the ABIA or a real org of mechs say? Wouldn't they be obligated to dictate a std level of performance in this area? There would have to be all kinds of std's approved and designated. This would quickly distinguish poor performers. Guess thats why Olhausen likes screw holes in the middle.