I have ordered the OG11 also OG verbal and OG Quant as well as cracking the Gmat. I plan on getting Kaplan math review and manhattan SC. My question which i hope Eric the founder would have some input, is i know Manhattan offers several math review books like Geometry GMAT Preparation Guide, Equations, Inequalities & VIC's GMAT Preparation Guide, Number Properties GMAT Preparation Guide, Fractions, Decimals, and Percents GMAT Preparation Guide. I havent seen anyone recommend these also will i hurt my score if i didnt buy all of them, my target score is an 800 ofcourse, i will shoot for the stars and if i hit the clouds at 750 i will still be happy. But do u guys believe with the current material that i have and plan on getting will it be enough, is there any 1 book that reviews all these. Thanks for your replys.