New GMT II Bracelet, how difficult is adjustment?

[DaveN]

I'm planning on a GMT II but will most likely get it from an out of town source. Woody posted on another thread about removing links from one side and adding to the other to get the fit perfected.

Is there a trick to band sizing? Does it have to be performed at a dealer or might it be a DIY project? If I supply my wrist measurement can the seller size it for me? I will probably have to get the watch by mail since I want to beat the price increase and won't be traveling soon.

Dave