Not exactly. You're right about the CP and CP+ where the swash plate goes to the flybar and the flybar goes to the blade grips (Hiller). If the swash is connected directly to the blade grips it's Bell. But the CP Pro (bell-hiller) combines the two. The blade grips are connected to mixing levers which are connected to both the swash and the flybar, then the flybar is also connected to the swash. So the blade grips get a mix of input from the swash directly and from the flybar. That's why it's called "bell-hiller", you get some of both.


But yes, you should be able to install the stock CP/CP+ head assembly to "downgrade" from bell-hiller to hiller.