I'm getting the opposite now with the spitback lol.
I figured out the Ammit's dry hits at least. The problem is with the tails touching the juice well's deck. It should just cover the top and dangle down halfway at most, then youre' fine. Even with super-thin cotton, if the tails are too long they slam into the juice well's wicking holes when the vacuum forms, and create a seal.
Just out of curiosity, do you begin to inhale a split second before firing the coil? Because that's how I've always done it.