Hi,
didnt fly today, my back was signalling that it needed rest (slipped disc)

I am not exactly sure what happens but you can still hand turn over. Flicking with the driver on is another matter, the whole airplane will jump left if I do without holding. Best to use a starter. Its a 3 line tank and by moving the carb all the way back closed when filling, it itself acts like a regulator

Ameyam