From my experience :
I've got two
devices that have that timed shut off. My provari is sixteen seconds and my mvp is 10 or 12.
On a mouth inhale, I struggle to take longer than six seconds before I just don't have room anymore.
At that point, I release the button, inhale to my lungs and possibly start again.
But... I don't hit straight to lungs. My atty isn't a super airy dripper or anything like that.
A ten second cut off isn't something that hampers me with one caveat :
The mvp takes a moment to shut down after I release the button. If I'm chaining pretty quickly, it will trigger the shut off because I don't give it that second to really stop.