Glad to hear I'm not the only neurotic one - I'm doing mine with Bristol and got mod 1 exams Aug. Though I've done the course and am very much in revision mode, doing feedback really bangs home the fact that you can quite conceivably know 90% of the subject really well AND STILL FAIL!! That's what terrifies me.
My revision has been a combo if reading and re-reading, using the Oxford "feedback" CD (they say they are ATPL "style" questions, so not sure if it's actual feedback or not) and the Bristol on-line feedback database. The Bristol questions are much harder. One minute I can score 85% the next 65% - it's absolutely toe-curling.
I can only take solace in the fact that loads of people seem to struggle with these things, and if I muff a couple I won't be the first or last.
In any case I wish you well!
S-S