Hi PurpleDrank3000,
First off, a 660/Q47 is a strong score (it's just above the 80th percentile overall), so it could be enough to get you into your first-choice School. As such, a retest might not be necessary. Depending on the Schools that you plan to apply to, you would likely find it beneficial to speak with an Admissions Expert about your overall profile. There's a Forum full of them here:
https://gmatclub.com/forum/ask-admission ... tants-124/If you do choose to retest, then I'd like to know a bit more about your studies so far. You mentioned that you used the EMPOWERgmat Course - but you didn't clarify for how long, the Study Plan you used, your prior CAT scores, etc. You also mentioned that you had not put much effort into your Verbal studies; does that mean that you didn't work through the Verbal "half" of the EMPOWERgmat Course? A V40 is approximately the 90th percentile - and it will take some significant effort - and focused training - to consistently score at that level. If you'd rather discuss all of this privately, then you can feel free to PM me or email me directly.
1) When are you planning to apply to Business School?
2) What Schools are you planning to apply to?
GMAT assassins aren't born, they're made,
Rich