quite a few times, hence I mount my own, now I messed up myself recently, new jig, which was off, and so was topsheet! damnit!
my local big box had a pretty insane deal during spring time, basicly 10 cent SPX 12 with 200USD enforcer, so I jumped on it, yeah... way different heal adjustments to get forward pressure right, not a big thing, but.. yeah meh
The Jigarex is pretty cool, but has a few drawbacks, it doesnt flex with ski profile, so depending on camber profile and ski width, you will need to put a piece of flatbar at each end, to get proper centering.
Also the holes sit up high, and are floating.
With that said I have mounted a ton of skis with jigarex. but for like a CAST freetour toe with inserts I'll take a normal pivot jig
I think my favorite was a pair of skis I went 2 different places with, and BOTH mounted them on wrong lines, even I had a damn note taped to each ski, and the line drawn with permanent marker  on topsheet AND sidewall. The instruction for 2nd mount was "if there is hole overlap or issues, go forward"... so yeah I got the BC100s mounted +1 instead of +4 or +5 for some reason, with that instruction. Note also said please call me! (didnt have jig for shifts)
**This post was edited on Dec 8th 2020 at 4:34:58am