You Blade CP or CP Pro is a CCPM heli so you would have to
use the FS8 version of the FMA co-pilot.
The FS8 has a built in FM receiver plus all the mixing required
for CCPM. It costs about $105 bucks. Its a tiny bit heavier than
the CPD4 co-pilot but since you have to remove your stock
receiver it will probably all even out.
Some guys think you have to have a PCM receiver in a heli but
I've been running an FM receiver (Futaba) for a year and I've
never had any glitch's or any other problems. I prefer FM....
Here's thier web site:
http://www.fmadirect.com/
Good Luck,
Bob