before my 2nd attempt instead of reading loads about ATC i just used the booklet provided and instead just practised like a dullard; few sheets of mental arithmetic and fractions stuff every week for 3 weeks before. Made myself some little cut-outs of cube templates just to get into my head how they rotate and twist from flat plane into the cube. I also noticed I used scrap paper a lot more the second time around. Once the vertical switching commands got a bit more complicated I found I had time just to roughly write them out and still get it done. No rocket science to it I just put more effort in really - hope to christ I make it through interview now else another year in the wilderness.