I wish I could help all the NS binding mounting needs, I'd be happy to answer questions to the best of my ability, none of you should have to go through "binding mount anxiety"(BMA).
I read threads like this all the time and it makes me wince for two reasons... one, you should be able to confidently drop your skis off at a shop and know that they are going to be mounted correctly and well taken care of. Two, as a shop owner and loooong time ski tech... how is it possible that there are ski shops that can cause BMA by even employing techs who don't know what's up.
To be fair, our shop is family owned, and the same crew has worked for us for a long time; we don't have to deal with the turnover or the training of incoming techs but regardless, if I knew that people were standing at our counter, and were full-on BMA-ing about what we were going to hand them in regards to getting skis out of the backshop, I would certainly want to know about and fix the problem.
Sorry for the rant, just a guy with the capability of easing BMA who wants to help.