Hi again folks,
Just a quick update on this problem I've been having.
It was the lipo's.
I think this was mentioned earlier on this post but I honestly did not think I would have two lipo's go bad at the same time. They both check out okay on both charging and discharging, but there is obviously something not quite right with them. I have bought new Nosram lipos and had my first meeting where I finished every race.
I feel a bit stupid now after all that soldering etc.
but at least I'm a happy bunny at last.
Thanks for all your ideas and posts.