As long as its visible and within the warranty period.
Just go down as ask, while you are there, you can also request to change the ear rubber and nose stand as well.
Alot depends on the tolerances, if its general +/- 0.1mm its ok. If you are talking about +/- 0.05mm, then you will be talking about something quite different.
PSB Corporation is your man. They do a whole lot of tests. Talk to them, I am sure they have some existing testing methods in accordance to ISO standards.
How about a pure ski trip? I'd bet its so much more enjoyable than the usual touristy stuff... There's a trip to Hokaido soon!
Check here:
http://www.skiventure.com.sg/