I can really use your help, please. I scored 640 (Q42/V35) a couple days ago after prepping for several months. I am scheduled to take my second GMAT in a month and have a goal of 680 (Q45/V38). In particular, I need any/all suggestions on how to raise my Quant. I've done quite a bit of prep, but continue to struggle getting beyond basic math comprehension. the concepts are tight in my head; it's applying these with ease and fluidity, across PS and DS questions, across topics and question types, where i stumble and struggle. my gmat "knowledge" - test, timing, strategies, is definitely high.

i am going to put a master plan together this sunday to follow for the next month and i can really use your advice/opinions/thoughts, please. only stick with og? how many practice cats should i take (i am thinking one per week, so total of 4/5).

thank you!!