I've had a good experience with these tires. I think MX1Canada underestimated US demand, which was probably generated by this thread alone.
I'd get an E10 but it's priced too close to other good tires like TKC 80 and Heidenau K60. Maybe I'll try a Heidenau rear and cut the lugs out with a nobby knife.
I've tried looking elsewhere for the e09 but there's not a lot of options out there right now. Beware any US inventory because chances are they're 2-3 years old and are past their sell-by date.
Consider Mitas is owned by Continental, so it could be a profit play. They don't think the faster nickels Mitas would bring them outweigh the slower dimes they get on the TKC-80.
Isn't MX1West the same deal? I'd expect them to be first in line. Maybe even bikebandit.