Mystery Man happens to think 6s and 7s are pretty good catches as they tend to be decent looking girls with good personalities as opposed to 10s who for the most part have been pampered, coddled, treated like royalty their whole lives, and generally work much less harder than the rest. So, yes I would definitely talk to/hit on the 6s and 7s.
Note: Sometimes when a 10 sees a guy hitting on one of her 6 or 7 friends it sends her into such a fury that she goes after the dude herself. She can't understand why she's not being chased down so she becomes intrigued. This way the dude can score the 10 if he wants.