We've seen several top college teams using this play a lot already this season--Cornell, Syracuse and Yale have all used this in the first two weeks of 2015. It's a simple way to get your Midfielders "dodging downhill" and using the 2-Man Game.
We spend a lot of time at camps and clinics, and we go to a lot of summer club tournaments where several hundred teams are attending from all over the country. We listen to coaches in between games to hear what they are teaching their players now. We notice when things that were important ten or twenty years ago are not even being mentioned by coaches anymore. And we notice what kids are and are not having success with on the field.
Every lacrosse player born in the US has gotten plenty of stick skill instruction on how and when to use the stick on both sides of the body. Now, more youth players are growing up playing both Box and Field Lacrosse, and having some really great success with it.