Airtronics RD8000 Setup w/AXE CP---

Has anyone tried setting up their RD8000 with the stock AXE CP??? I got tired of the feel of the stock radio and wanted to set it up to fly on my RD8000. I selected the correct swash and even experimented with changing the servo leads around on the receiver. I get reversed collective no matter what I select in my radio. In fact, the only thing that seems to work correctly is the tail. I would appreciate anyone's input on this particular setup. Can it even work??? Thanks.