I've got to have one of these. It looks like I'm a little slow out of the gate though as it looks like they are sold out at the moment. What's is weird though, is that my PT1 works perfectly on the ProVari but the PT2 is restrictive. I think I'll try swapping out the bases and see if the PT2 works fine until I can get 1 (or 2) of these aerobases.
I bought the Aerotank (dual coiled) because I am impatient and didn't want to wait. The Aerotank base is sealed so it won't really leak out of the bottom and the glass and drip tip are inter-changeable (I actually have done this). You can also use the single coils in the Aerotank but not the other way around. Since the air holes are on the side of the base, you get no air flow issues.
Don't much care for the stock set up on the Aerotank because I don't like the dual coils, don't see the point but your results may vary.

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