I posted this in the other thread, but will paste here for those who are waiting for reviews on the MS (shorty):
Our MS shorties are in and are in use. We like them very much! Very similar to the regular M as far as filling and air flow. I don't detect any extra heat due to the shorter chimney, so if it is there, it is negligible - at least to me. I don't vape hot, usually 8-9 watts. I close the airflow all the way down, which is to my liking - and there is no whistle at all. A little "snap, crackle, pop" but no more than I'm used to and so far, no spitting of juice into my mouth. It looks super on the isticks and is perfect for the mini's if you have a stealth vape set up. The only negative is the smaller tank -- unless that is your goal -- and then it's probably perfect! For me, I am loving the AirM (4ML tank) and will probably pick up a few more of those.
These Airs are all great and are multiplying like rabbits at my house!