@JhawkAlum I like it ... but not all the time. Like the four flat.
I don't like doubling until you attack the receiver with his own defender. Envision Selden at the wing moving to top. Mason hands to Selden. The mid top defender, who maintains his spot (because they switched), attacks Selden just as he's receiving the ball. Doing this nearer the wing (very important). The wing defender, who is now Mason's defender, attacks Selden's back. Mason now behind Selden. The post defender on Mason's side (post defender one) slides to the open zone near Mason, to defend that. The other perimeter defender guards the third perimeter player, but is moving toward Selden with the offensive player (due to the weave), and creates a little logjam.
The only real weakness is if Selden can find post player one (who's defender shaded Mason), and find him at the right angle, inside, toward the basket, over the double team.
Another option is the second post defender zones a bit in the middle to partially cover his man, and the semi-vacated first post man (whose defender shaded Mason). The wing defender could help cover that space by dropping down a bit from the anticipated second hand off spot.
Personally, I like creating one option for the offense (the inside angle pass to post player one). If they beat you, they beat you.
Hopefully I explained that so it can be visualized easily.
Can't defend it that way every time. But I think it is one strong way to contest the weave.