I wrote an analogy a couple of years ago, Mr. Mann may remember this:
An analogy if you will:
I will use meatloaf for this one.
The common ingredient is hamburger. Now there are different grades of hamburger (as there are different grades of flavoring)
Then you have those that grind up their own beef (vendors that extract their own flavors)
What makes my meatloaf great to me is all the other things I add to it. But no matter what other things I add, it is still meatloaf.
Most meatloaves get an egg added (we'll pretend that is the VG)
Most get breadcrumbs (PG if you don't mind)
Now the master mixer comes to play. Let's get some salt and pepper in there (nic)
Now how can I make this special and stand out from everyone else's?
Let's add a little of this (a drop of flavor x)
Add a little of that (two drops of flavor y)
Whoa, I make the best meatloaf I have ever tasted! I think I could sell this. What should I call it? Well Duh! It's meatloaf!
Let's see if I can take this a little further:
I go to a restaurant and order.......yep, you guessed it.....meatloaf. It is the most disgusting meatloaf I've ever had. But wait! Shouldn't it taste the same? It uses the same basic ingredients, right? Yes it does. But what are the ratios they are using? Two eggs can change meatloaf's texture if you only use a pound of beef. Too much salt...well we all know what that does.
People who mix flavors, whether they make their own or whether they buy premade flavors, are still mixing their Own recipes to come up with what they think is great....to them, first, and hope that others will think its great to them too. Some do, some don't.
That restaurant that I thought the meatloaf was gross? Well turns out that it was voted best dinner in Philly. Maybe if I didn't love mine as much as I do, I might've liked theirs too. (just had to throw in a bit of DIY )
I thought of this analogy while I was making.....wait for it.......
Meatloaf
open a restaurant and sell your meatloaf.
some will love your meatloaf. others will say they liked the
meatloaf at the other place better.
some still will swear by mom's hands down.
i mixed paint and pre-mixed wall and ceiling textures for years.
once you have your formula tweaked you can repeat it and
get the same result time after time.
the difference in quality comes from difference in grade and quantity of the raw materials.
with e-juice there is not much difference in quality.food grade PG,VG,and flavoring is
food grade.pharmiceutical grade nicotine is pharmaceutical grade.
aside from the use of in house extracted flavor,(which is chemically the same as synthetic)or,
aging in oak barrels and a few other novelties every one starts out on a level playing field.
so your pretty much left with adjusting the quantity of ingredients all of which are pretty
much the same.control of process is more important than artistic talent when making e-juice.
come up with some thing every one likes,your good to go.

regards
mike