I have an Ultra Stick with 7 servos on it. Four of these in the wing are JR Digital DS 811 servos and the others in the fuselage are standard servos. When I do a range check the digital servos chatter but the others do not. Has anyone had a problem with this? What remedies do you suggest? I called Horizon who told me I could buy RF filters (at $13 each) which might remedy the problem. I just don't like the prospect of paying more for digital servos and then when I have a problem with them the remedy is to throw money at the problem in hopes that it might fix it. Any help would be greatly appreciated.

Daryl[8D]