Well here I am, but I'm not sure I can be much help. Raine, we actually used the Bond Books which may or may not have included more question types than we needed- I never could get a direct answer as to what question types would be in the exam- and then a supplementary S.D. book to use on one area.
When I did it Ididn't even know until he'd taken one of the papers that one was multiple choice and one standard.
I too started by going through the different techniques until I set him a couple of papers and realised that DS could do most of the question types and that I really needed to just focus our efforts in a few very specific areas.
I think when I asked him after the exams DS said that they were easier than the papers with which we'd been practising.
(BTW we are OCC too.)
Very good luck to your DC! Will they take the consortium test too?
Floss, it's great to hear about the confidence building, that's actually the main thing I'd like them to instill in myDS!