Are there pins in the back of the 2.4 only 12x? I have heard of problems (wear, inconsistent mating) with the pins in the RF module that can 'cause problems/intermittant issues if the rear module is being handled alot.

I have the 12x MV, which is the combined, 72 mhz (what's that right? LOL) and 2.4 ghz rado, and I never touch the rear module because of this.