Polak, you may be my new hero! I've tried everywhere to buy a tool that will open up my Wave. Leatherman says they MAKE the tool themselves, and nothing available commercially will work.
On either of your links, could you specify which bit actually worked? It looks like a star security bit, but that won't usually work because the WAVE has a milled point in the center of the star. Did you have to do anything special to take it apart.

If I do get it apart, what do you guys think of trying the modification to the file like the PS2 mod. referenced in ETS? Think it will work?