Pay more attention to your pace from the very early beginning of your preparation, especially in CR, if you can control your accurate rate in 18/20 in 35min, that is great. But , at the same time, the most important thing of CR is summary, thinking which are the useful experience of Big Niu 'Mindfree' who got crazy 790 and which I strongly agree. Good luck, guy, think much of GMAT, wish you happy in studying.