I haven't really been doing past papers, instead I've done alot of questions on various topics, which has really boosted my confidence and is good preparation in the long term.
I will probably also start getting out some past trials in preparation for the upcoming trials.
I haven't started with the past papers as yet, still finishing off the extension 1 course. I'll hopefully get through a few of those past papers in the holidays.
i started the trial papers about a month ago, but i have to keep missing out the things i haven't done. And it not really me sitting down doing an entire paper, more like a paper a week
For those of us using the MIF (M.Grove) books, I would recommend the doing and redoing of the ---> "test yourself", "revision set" and "challenge" exercises ---> they are good revision...especially the challenge exercises which have some pretty hard questions!