Chris... this is a great thread and really glad you posed the question!
I get my EJ from TV and one other place... and both are really class acts IMO.
The reason I mention this is, I saw them post somewhere that their nic... which is not doublers and the like... is at 20-25% VG. To me, this is significant because they are going with what is most commonly desired by their customers.
But for myself, I really went with Mrs TV's suggestion (or whomever wrote up the TV descriptons) of 'a touch of VG', which, like yourself, is at 10%. So, with this other company's EJ, I have a ways of diluting their VG down to 10% without diluting the flavor or nic. With TV EJ, I just get it at 10%
I tried 100% PG a while back and, seemed like with having no VG at all, the EJ was too watery. Almost as if the 10% VG gave the EJ a level of... 'solidity'.... if that makes any sense. But still, I could notice the difference in taste between the 10% and 20%, so I just decided to go at 10% for everything.
The thing about VG... is you get more vapor but, on the other hand, less TH, less flavor, and it clogs your addys and the like up more. So, not sure why people would go to more than 10 or 20 % VG, excepting those that are alergic to PG, but, to each their own I guess.
One thing that those that are alergic to PG can do, is to jack up the flavor. There are ways I have found to do this (not that I am alergic to PG... for me a matter of using it on cigarette sized ecigs and 3.0 ohm cartos... jacking up the flavor to compensate for less vapor in these). Along these lines, I have been thinking of ordering some doublers from TV, with NO PG AND NO VG. In other words, just the flavoring so I can jack up the flavoring to my liking and... thinking about this... something those that are alergic to PG might want to do.... if they want more flavor/TH.
For me and nic, started at 0% thinking I could stop smoking with that (being I smoked Carltons... lowest in tar and nic), but that didn't work, so I went to 8% and got major progress there, but not completely stopped smoking and, tried 16% and, that didn't work. More recently, tried 4% and even 2% but, have migrated back to 8%. My TV EJ (cafe mocha, german chocolate cake, etc) in particular just didn't seem to taste right at less than 8% so, maybe it just a matter of what I am used to.
That was one thing I found most interesting about what people have posted in this thread. More than anything it seems to be a matter of what each person is used to and most comfortable with. So, I guess good advice for anyone is to try something standard and then vary that one way or another until you come to what you yourself are most comfortable with.
The other thing... a LOT of low-nic users. Didn't think there were that many. Maybe a lot more here on TV though because the doublers are very cost effective for low-nic users.
Thanks again for the thread!
Z