dude, any wand will work.
It's the flow of the jetting along with the PSI that makes the difference in too much or too little.
(wand technique has much to do with it too)
wands are a personal thing.
Some guys like one style over another.
Personally, I'm not a big fan of 4 jet wands because of jet pile distortion on some cut pile carpets.
I'd rather have a 6 jet or 2 jet wand
..L.T.A.