Can move as much as 1/16, too much for me. It is possible that with two clearance holes instead of one, it could loosen and rattle. It's not that hard to do it right. That crimp tool seems reasonably priced. The crimp tools I have worked with a little ingenuity. It's totally up to the poster, just my opinion. The proper way is to install long bolt, then a nut inside which acts as a spacer (and locks the bolt further) then the plate...etc.
