vwjetty
I dont know if anyone else here is having the same kind of problem I am but I'm definitely definitely stuck. Right under the 600 mark. I'll the GMATprep and get somewhere in the 560-570 range. And then do the
Manhattan GMAT CAT's and get around the same. Reviewed the OG as well as the
MGMAT SC twice. Any ideas or comments on how to get over the 600 mark? My highest score was like a 590 and my lowest was a 560....
and im starting to get the feeling that I reached max intellect capacity

How exactly did you review OG? The right way of doing OG is STUDYING the answers. And by "studying" I mean analyzing wrong answers as well as the right one. You should have a solid understanding of reasons that make 4 answer choices wrong and one - right.
I mean, the resources you used were right ones, maybe your tactics were ill-chosen.
In this situation I'd have started with OG 10 to sharpen my skills by working on some easier problems. Back to basics, so to speak. Then return to OG 12 and
MGMAT SC, CR