Sorry can't help answer that. Wish they would, it did wonders for their sales here.
In the end, more tried and bought the Utrip. Did not see very many if any break here from proper use. We had benefit of 30 day money back guarantee on it (with select dealers who chose to back up Mizuno's guarantee), and the 1 year warranty. Couldn't go wrong really. Bought one to see if the indoor winter demo wasn't just a fluke. Wound up buying a back up and 2-3 teammates adding their own through the season.
I have 2 Utrip EL now that are 1500+ on our team fence and aside from being rashed up to all hell, they still perform like when they got to about 100 or so hits in. Never really got softer or weaker. Pretty impressed.
I am seriously hyped to hit one with a thinner handle and more EL. That is what may have lured some of my attention over to the Flex late in the year.
I hope their Dual with ASA stamp holds up too, word is a lot of input and work was taken into that one knowing the previous was a bit of a miss.
So the real question everyone wants answered.... will there be warranty for US sold bats?