UPDATE
Firstly an apology - I can't find the PC lead for my phone camera and there will be pics to follow. In the originall review I said I cooked some juice on the first atomizer I used and this is true; if you want a tight draw, this is the way to achieve it.
As a result, I replaced the atomizer with the spare one provided in the kit. If you can hold the tank in one hand and do this with the other one (which I did) this has to be one of the easiest cleanest tank atomizer/wick swap outs - almost as easy as the T3 / MT3.
REWICKING & RECOILING
Having done this I set about seeing if I could rebuild the wick / coil. The centre tube on the atomizer is an interference fit and requires a bit of wiggling towards to two cutouts designed for this and at the same time pulling. To do this I slid the silicone cover back slightly. Once this is out you have access to the coil and wick. The second thing to do is to remove the 510 centre post, which is just a push fit. After that remove the rubberised grommet. This is nice and simple and also provides the connectivity; the +ve sits inside this and connects with the centre post: the negative sits outside it and makes contact with the body.
I then cut a short piece of wick and tried to coil it - at which point the wick fell apart. I then cut another piece of wick and wrapped the ends in foil (thanks to
ado28 for this tip) and rewound my coil of 4 turns of .15mm nichrome. This needs long tails which feed down through the body and one inside and one outside the rubber grommet. Holding both tails I pushed the rubber in and then pulled the wick. coil unit down. Then I cut the tails and fitted it into the Protank base unit. The reslt was a 1.8 Ohm coil that worked / works fine.
The Protank at 1.8 Ohms
This, in my, opinion is thee coil resistance this should be supplied with. There's bags of vapour production at 3.7v and at 4.2v it's slightly warm too. The draw is still slightly airy, but this is barely noticeable. I have nothing that produces vapour like this does at such low voltage / power settings. Vapour production was adequate at 3.4 v and it was still producing (though a bit of effort was required) at 3.22v - which is as low as my TTS will go. Flavour was as good as the T3 at 1.8 Ohms too. Infact it wouldn't be unreasonable to call it the T3's bigger, posher and more durable brother
.
I can see now why they supplied an Ego Plinth in the kit - it is a superb partner for these. In fact, it's going to be brilliant with anything that's unregulated as at 1.8 Ohms it does the bizzo between 4.2v and 3.4 v and I suspect, that's where it's been designed for. What puzzles me is what they've done to make this so efficient, because it's not the coil, that's home made and the wick is - stumpy is an understatement. I suspect the cleverness is in the airflow and juice delivery.