Hi TheGuyDangerous
First off, a 720/Q50 is an outstanding Score, so you will be able to comfortably apply to any Business Schools that interest you. Since you are ultimately asking Admissions questions, you would likely find it beneficial to speak with an Admissions Expert about your overall profile and plans. Those Experts should be able to answer your Admissions questions and help define the specific areas of your profile that could use some improvement.
There's a Forum full of those Experts here:
https://gmatclub.com/forum/ask-admissio ... tants-124/Since you are not facing any immediate application deadlines, you might find it more worthwhile to your OVERALL application to work on other aspects of your profile (as opposed to continuing to focus your energies on the GMAT when you already have a really high Score).
GMAT assassins aren't born, they're made,
Rich