well, you could try that and see what happens. i think you may be right about the glue though. try screwing them in next time you ski, then at the end of the day check and see if they wiggle. if they do, take 'em into the skop.
i dunno i think your skis can take a third mount. besides are you going to have a redrill or just have them reset the bindings. if you do have a redrill just have them fill the old holes with epoxy, you should be fine.
no, i just mounted mine further forward than mid sole. depends though, when i pick up park skis over the summer when i get money, i'll have them center mounted for sure.
yeah what's he used to skiing on? if you mount that at -2 from center they should be awesome. i'd even say if he's that light go even closer to core. that way they'll ski like they're a much shorter ski when they're in fact 179cm.