What is the difference between the CP & CPP ?

[y2kgtp]

I'm thinking a CP or CPP with the included radio will be my next bet.....I figure I can beat on that while saving up for a 450 or 600 t-Rex, as that setup would likely cost a grand + to do it correctly :mrgreen:

[Mortificate]

So all I need to make my CPP compatable with the DX7 is the AR6100? I have a DX7 on it's way so I want to make sure I have everything I need. Also I plan to get the Trex 450se v2, is it better that I use a 6100 or can I save the cash and use the supplied 7000? How about the servos or are they too large for the 450?