Female Wannabee....I'd go for it, CTC have stopped charging at stage 2 anyway, you only have to pay at stage 3 onwards these days so what have ya got to lose! Also being a bit more familiar with it second time around might help you settle and get better results.
CaptainFlash..i failed the maths test but passed at the resit at stage 3. All I can say is to geek it up to the max and revise like hell. Personally I took it too easy the first time thinking that i'd ace it, whereas in fact I'd pretty much forgotten how to do long division! It defo helps to do lots of practice sums beforehand.