Salut,
I'm happy that your issue is solved.
For my own curiosity I would like to know if having a diode on the coil is really a problem.
I have just added the diodes on mine as I have been told that this could prevent problems if there is an issue with the tie back wire.
For so far my STTNG is working without issue with diode on the coils and a Rottendog/original board.
Cheers,
flugs