My uncle in Aus had a 330kw BA GTP, had so many electrical problems over the space of 6 months they just gave him a completly new one.
It was when they first come out, unfortunately FPV of late have been cutting corners to get their performance models out on time. ie the FPV typhoon had huge gearbox issues when it was first released, was about 0.5s slower than the XR6 turbo over a 1/4mile