Hi Rotorgirl,
We had/have a similar thing going on with our Super D. Movements in collective are reflected in movements in cyclic.
I'ts more a nuisance/distraction than an impending failure. The issue is with the mixing unit located aft of the cabin space. It combines the inputs from both cyclic and collective into three 'outputs', for lack of a better description. These three outputs correspond to the three hydraulic servos attaching to the stationary swashplate of the main rotor.
If I recall correctly, the bushes that separate the metal components of the mixing unit are a urethane type and don't need lubrication (correct me if I'm wrong - I'm only a pliot, not an engineer). Our engineers checked out the problem and applied some lube to the same bushes and it improved the situation somewhat but did not alleviate it fully. There was NO safety issue.
GP
