I just did half an hour or so most evenings after work, and worked my way through them over about three or four months (dropped six marks over the seven exams - now where's that 'smug' smiley...
). Most important thing IMHO is to get started on them fairly early in the training and keep plugging away at them, rather than leaving them until a frantic week just before your skills test (that advice may be a bit late...
). Some are so basic that you can pass them with zero effort (Human Factors), others are dull (Air Law) and a couple need a bit of work (Aircraft Technical or whatever it's called), but none of them are in any way difficult.
Oh, and get the Confuser. If you're wondering what's that then search this forum
