Hello,
I have a question and problem regarding my 5645MG and 5955 servos. Here is my setup:

Wild Hare 28% extra 300
Futaba FP-R138DP PCM 7 channel receiver
Here are my connections on the receiver:

Battery slot: 6 volt NiMh pack
slot 1: Left aileron HS-5645MG x1
slot 2: both elevators on wye harness -HS-5645MG x2 with one servo reversed using programmer
slot 3: HS-322 on throttle
slot 4: rudder 5955-TG
slot 5: HS-322 on choke with wye harness and second 6volt Nimh battery pack
slot 6: right aileron HS-5645mg x1
slot 7: sullivan skywriter smoke pump

Here are my problems:
1) the elevators won't work together on a wye harness. As mentioned above, I have two 5645's on the elevator halves. They were both puchased from tower at the same time. One elevator I had reversed with a hitec programmer at the LHS. Each individual servo will work on their own, but they won't work at all when I connect them with a wye harness together. Any thoughts?

2) this problem is related to the 5955 on the rudder. With power on, the servo emits a constant humm, that is fairly loud. There is no twitching or anything like that, just a loud humm. Is this normal?