I'm only in my second month of vaping, having been a heavy smoker for 25 years. But I've certainly done my research in this short time and, after trying a dozen different clearomisers and tanks,found the Kanger T3s to be perfect for my tastes. I.e. it delivers huge amounts of rich tasty vapour on my V-Tube! However, I have found that I still end up with the last quarter of any liquid looking and tasting burnt, that is until I replaced the flavour wick on the T3s with a rolled up piece of ordinary cotton wool. Now, not only can I vape literally down to the last drop with no discolouration or burnt taste, also the draw is improved (less airy) and I never get and gurgling at all. Simple yet incredibly effective and I'm saving on all that cruddy liquid I used to just wash down the sink.