Josh, I just shot this pic so you can at least see the difference between the CPP and the CX2. The CP Pro is 20.7" long and the CX2 is 16.42" long...Main rotor diameter of the CX2 is 13.60" where as the CPP is 20.3". The CPP is considered to be a 300 series. The CX2 ? Not sure.. A toy class ? lol ! It will always be one of my favorite, even when I move up to a TREX someday. Another pic is of my dad's TREX 600 next to also a CPP, and of course it is a 600 series, with about a 53" main rotor span...Best thing to do is go to the hobby shop and see in person the diff, and of course drool !! Hope this helps, Jeff