I'm pretty sure that the odds of getting two with the same crystal are pretty low, possible, but low. Find out what his is and when you get yours just make sure it's not the same. If it is just pick another (if there is others to choose from).

And you guy's both will probably want to check out this thread:

http://www.rcuniverse.com/forum/m_3131294/tm.htm

It's for the Balde CP but the set up is the same for the CPP.