My ACS has done FOOKIN' well to be honest, the tabs appear to have been ground off, it doesn't look welded and I've never tightened it up in the year that I've had it, and it's only skipped a handfull of times ..sweet . I count myself extremely lucky to have such a good working ACS after all the things I've read on this forum. P.S: Will be getting a tensile freewheel when they come out because they look pretty good.