Love to hear what you find out. Non-repeatable setting of a major control makes me twitchy.
I used it on a gig last night and, to be honest, I barely looked at the knobs. I know the last time I had the case open I set them to the marks, but I got distracted at the venue and never got around to looking at them up close during the gig, just a quick glance from a distance. I was running closer to 0 dBFS than I usually like, but nothing seemed to be clipping and the left/right balance seemed okay. I don't think they're super sensitive at the top part of their range.