OK, maybe it's that time...for me.

I've learned a lot about the CX2 over the past several months but it may be time for me to upgrade (to an outdoor heli).
I just learned that there is a local club that meets once a week to fly fixed wing planes and helicopters outside. I spoke to a guy flying a T-rex and he gave me the low down on the club.

So, I love my CX2 but obviously I won't be able to keep up, especially outside, with the club.

I am a newbie again.

I'd like to know the main differences between the Blade CP and 400.
Also, which Blade helicopter is most like the T-rex ?

Please keep in mind I know nothing about single rotor helicopters.

Thanks.