I'm still here - had a little trip away for the weekend, so am catching up on posts now!
Still very grateful for all the input - I can't believe it's still running.
A good combination of things to chew over myself (such as getting the sequence off pat in my head - memorising the numbers and dare I say it, the mnemonics) and some to discuss with my instructor.
Unfortunately, I won't be able to have another go until the weekend after next - thus the consulting with the pprune oracle rather than the man in the r/h seat. Still, the way the weather's been, I don't think I'd have got any practice this weekend, even if I'd booked!