No, I haven't bothered to look since torquing it own and calibrating it. It's moving predictably for now. I'm sure if the issue persists I will tear it down and reevaluate at that time. Or when my OCD kicks in and I just have to resolve that play. I have some ideas in the back of my head about redesigning that mount, possibly with something stiffer than 1018. The other possibility which would require a foundry is a complete redesign of the slide. it's not very thick and kinda short so I could see Arizonavideo's point about flexing. but that atm is completely beyond my skill level. If I ever got to that point I would probably build a bigger machine. But heck you might as well start a business with everything involved in that.
I think a better stand is a priority before any of that though.