Maybe I'm reading things wrong but is there a difference that maybe y'all have heard between the MI21S1 and MI21S2?
Or what ones you peeps are rocking? I when on Onlins site today and both were out of stock. Sucks cause I could've pick some up a couple of weeks ago.
I'll end up calling them tomorrow but if I can't find any what other HI end race/street do you recommend.

Thanks!