Rudders and brakes should always be ran thru AH. I'll go even further and say throttles and stick axis's should be also.
With my X-52 I even run Hat-1 views thru AH and I just map up and down to buttons on my throttle thru my Saitek SST software. It makes it very easy to look left, look left up, or look left down...ect I wouldnt be surprised if CH software is no different.