Haha - the pleasure of tinkering dissolved a long time ago @Chuck I just want to get straight to the relief, joy, celebrations and mischief when it is finally sorted.
I'm still working through fuel at the moment but yes, I agree with your comment on the ignition.
I discounted the TPS because the symptom isn't consistent with TPS problems (please correct me if I'm wrong). The unit that is in there is only about 10,000kms old and is set perfectly. It runs better than any V11 has a right to (when it isn't tormenting me).