Ah - I knew it! At the time it seemed the right thing to do (to be fair to myself, I've only used the RT a handful of times, and don't recall reading anywhere that feeding between the fence and the bit was a BAD idea) however when the cuts came out poorly and jumpy, I stopped work.
I must have had all my safety gear working well in order to survive those blunders without loosing a digit!!
I'll give it a try when I next get time...this time using method C!!
Thanks for your advice.