I've never flown an FP, but it might be drifting because of the trust generated by the tail rotor.  If that's the issue, you can just bank right a little bit as you're taking off.  Helicopters with the tail rotor on the right lean right as they hover.  As for your tail motor just stopping, I don't know what's going on there.  I know that some motor driven tails won't turn on until enough collective has been applied, but I don't know if that's the case with the Novus.