Hey Ed,
thank you for your report.
The experience and the conclusions you made reaffirms for me the impression that buying the Fixed Stand Legs that attach directly to the QCW Frame instead of a real machine table is a very bad solution (and I think the same of Rolling Folding Stand). I think that if you want to use the QCW frame (which not everyone would want at this price), it works best when you can use the Any Surface Leveling System (now included with QCW frame), and you can’t do that with these legs. For this it needs a stable table, which I would recommend, and with this, the Any Surface Leveling System can easily and quickly eliminate any twist that may appear if e.g. your table has casters and is moved around on uneven ground. I have not the impression that these legs can replace a stable table, and removing twist (=ensuring the machine’s coplanarity) on possibly height-adjustable casters at the end of the legs doesn’t seem a comfortable way to achieve this.