"Crazy process" was never mentioned. I am safely assuming you have never ventured into DIY juices. A perfect example to use is this. A few weeks ago, someone asked me to make them a peaches and cream juice. Simple enough. I have peach flavoring, and I have sweet cream flavoring. What you are saying is just mix the two, right? That was my obvious starting point, knowing what the main flavors had to be, but beyond that comes trial and error. The initial mix was enough to make me want to vomit. Once I had a good "simple peaches and cream" flavored juice, it had 6 different flavors in it.
If you want to test this theory, go on Amazon and order some PG and some VG. You can get both for $10-20, depending on how much you order. Then hop on over to Wizard Labs and get a few flavors and some nic. Mix away and please share your results.