Yeah but there are quite a few 'shop techs' out there that don't know their own ass from a hole in the ground, I mean seriously, I know of so many people that have had bad mounts, toe peices that are crooked...skis that are mounted in different spots because the tech just moutned on the line (which may, or may not be correct)instead of measuring from the tail...even skis mounted backwards for God's sake.  The only way to learn is to practice, and for some shitty old skis, it's fine to try out, I plan on mounting my urban skis myself.  Get as much info as possible though, the more resources - the better, talk to a good tech, one you trust...tell him you wanna learn how to mount skis, chances are he might take you on as a part-time apprentice, and just teach you the ropes, the basic do's and dont's of mounting and all that.  And for the record, a good tech can mount freehand so well, that in most cases, you'd never know the difference.