Speedo glitching; Servo causing?

[andrewc]

Hi all

Been running the same electrics for some time with no problem, have suddenly started to get a tiny glitch; any advice appreciated.

Basically when I first switch on, everything in 'neutral' position on TX, give the steering a flick from left to right and the motor turns a tiny bit, for just a moment. Have tried moving steering stick very slowly, or very fast, only left and only right but nothing uber consistent, other than if you flick steering V fast it seems to occur more.

Checked all connections, no problem, changed ESC neutral zone from 6 to 9% and back to 6, sometimes seems to go away, sometimes not.

Sanwa Gemini X 2.4 TX and RX
Speed Passion GT2.0 LPF ESC
Savox titanium geared V fast/torquey servo (which I've clearly forgotten name of, sorry)
All in a B5M

Any thoughts? I'm due to upgrade the speedo if that might help eliminate the issue, but is this likely to occur with a better quality ESC too?