battery plates may be a good idea: I found that the battery channel is a bit narrow for brick style LiPo packs. Raisng the pack a mm or 3 might take care of that... but then the pack won't fit in the rear.
I ended up putting my XX transmission in an Academy Griffin
Details are here:
http://www.rc10talk.com/viewtopic.php?f=33&t=38585