haha i turned the bec up to 7v on my vtx10 and that savox servo came to life!
haha.. plus it was a fully charged lipo so it was probably in the 7.4 range.

did not have a problem.. i have since turned it down to 5v and added back in the spektrum power cap for the spektrum rx's i like the comfort of the cap letting me know i wont have a brown out or missed lap!