Norrmannen,

Some good thoughts - I'll give them a try.

Being stuck with the servos on hand (spent current budget on the heli, gyro, motor & ESC), I choose the Esky because a) it doesn't have any play in the servo arm (the TowerPro's do), and b) the Esky's lead wire is in a tight twist (hopefully less likely to pick up noise).

Right now I'm fighting glitches. The TowerPro servo's leads had been lengthened for another use and are doubled up and tie-wrapped. I just received some servo connectors, and will shorten the leads to exact length required. I've relieved an old PC motherboard of two ferrite rings and will put one on the gyro - to - receiver lead, the other on the ESC - to - receiver lead. I'll perform your suggested 'different servo' and 'different channel' test when I do the anti-glitch work.

A thought on anti-glitch: Replace the servo leads with 2 conductor shielded twisted pair cable. Use the shield for DC Common (the receiver will tie all of the shields together). It seems that this should offer some protection to the servo's signal wire.

Thanks for the suggestions!
pt