Hi HS
The metal threaded stems are only just being sent out from the manufacturer so most Iolites coming from dealers will still have the old style stem. You can get new stems from my-iolite.com if you want the new style. I had an old style stem for months on my iinhale without breaking it, they are just fine but some users are breaking them.
Wilton glycerine is just fine to use, thats decent stuff. What mg e-liquid are you using?
You don't need much cotton. What I do (and I will do a vid) is make a little roll about an inch long and 1/8 inch wide and lay it round in a circle like a donut either in the bottom of the bowl around the pin or against the upper gauze. The more you use the tighter the draw will get so its a case of experimenting until its the way you prefer it.
When you turn the unit on, you should hear the gas hiss. It will take one or two clicks of the igniter to start the catalytic reaction. In the indicator window you should see the blue glow that withing a second or two turns bright orange
After 30 seconds (ish) the Iolite is up to temperature and the gas will shut off. It will then hiss for a few seconds every 30 seconds or so to maintain the temperature. When you shut the gas off, there will still be butane in the system and it will run on for a couple of hisses until the fuel is all gone. In time you will get used to shutting off the gas before you are finished so it runs out at the right time.
You can still find my manual over on my new site at
Xsmoker - Real tobacco smoking alternatives. This is where I will be posting new stuff about the iolite.
Hope this helps a little, it takes time to get used to using the iolite (just as ecigs do) but it is well worth the effort.
Best wishes
Andy