When I first received my JD, I contacted EZ-Robot support because when connecting to the example actions, he would violently jerk and twist. The neck servo broke the second time I executed (EZ-Robot quickly shipped out a replacement).
Jeremie provided information about calibrating & fine tuning the servos and although completing the steps did improve performance quite a bit, I am still getting a violent spasm when executing the actions on the 1st exe. only. All additional executions work fine.
My router is only a few weeks old. We have the fastest residential internet Comcast offers, I never have any issues with connectivity on any other device.
I just put together a quick video showing the spasm issue: http://www.screencast.com/t/5vphNsQCC2N0 . Please review to see if you can point out what I am doing wrong. I show my settings and JD reacting to execution.
Video of JD Spasm