I have a 722 that has been used pretty heavily. It has even been used to dig an arrow out of the surround of a target. 1x4 wood. Dug like a champ, no problem. And it hasn't developed ANY blade play. Of course, the first thing I always do is back the pivot screw out, put loc-tite on the threads, and reinstall, adjusting for easy opening yet no play. This one was done the same, and has held that adjustment for about 8 months. It is a great knife, regulary getting rotated through my EDC.