I have taken veritas combination and probability book ( paperback). I have actually already studied manhattan 8 strategy guides. I wanted to go through veritas course also. What do you suggest which books will help me improve further with the score.? The full kit of 15 books or some other advanced books. If other books I take paperback will I get more cat tests or the same 6 tests which I already got with paperback book? Actually I am interested in iPad version as to carry books is a big issue with me. Why the company doesn't provide cat tests with iPad version though they are more costly? Will they be starting in near future?