neither of these are questions. :) i'm not sure what you mean by "extreme techniques", but after you've read our IR book feel free to ask some more specific questions and we'll be glad to help..
Tim Sanders Manhattan GMAT Instructor
Follow this link for some important tips to get the most out of your forum experience: https://www.manhattanprep.com/gmat/forums/a-few-tips-t31405.html