Let us know how that Tatroe base works out will ya....
The Tatroe base is worlds apart from the PT base. It probably weighs 2x as much. It is clearly machined to far tighter tolerances; screws onto the ProVari silky smooth. It has 1 air channel, but is deeper and wider than that of the PT. It also leads to an air hole. There is a larger gap with the PT base screwed down tight on the ProVari, than with the Tatroe base. The difference in draw is tremendous. With the PT base, it is very airy. The Tatroe base tightens it up, but not so much it is an effort to get a good draw. I prefer to take long, deep draws, so definitely like the Tatroe base better. It also looks better. The PT base just looks and feels cheap, by comparison. I wouldn't leave the house with a PT on a PT base. Seems like it would snap off too easily.
The Tatroe tank with Tatroe base is another animal. Tighter draw than a PT on a Tatroe base, but more controlled, it seems. Very nice vape. I prefer it more than the other combinations. It also looks like it was made by ProVape for the ProVari. It dwarfs the PT and is easier to fill. I'd take this anywhere and not worry about damaging it. With a CherryVape stainless drip tip, it is quite heavy, though, but balances out the ProVari nicely. The ProVari is bottom heavy with the PT. I'm certain Tatroe makes their base and tanks with the ProVari as the test mule.
In the end, if you like a very airy draw, stick to the PT and PT base. If you like a tighter draw and well-machined base, get the Tatroe base and if you like a very controlled draw with a beautiful tank seemingly made for the ProVari, get a Tatroe base and Tatroe tank.
Oh, by PT, I mean ProTank 2, not the ProTank 1.