I have tried to recalibrate the esc, but it doesn't seem to be saving the new settings.

I'll def try epa on the steering to see if that helps.

I'm not sure on the brand or model of the servo, its just the standard kit one.

But i also thought it might be BEC related (i googled BEC after i saw it mentioned in other posts about glitching)

I was thinking of just picking up the Novak havoc esc/ss pro motor combo, which short of being an issue with the servo would solve the issue right?

Thanks heaps for your reply, I appreciate the help. I'm still very new to all this.