Look, nobody paid to see a snotfest, so let's not have one.
And the offer to explain things was to the OP, or anyone else reading this, speaking of butt-hurt.
The sticky thing is just annoying; enough said about that.
"The OP doesn't appear to be out to burn money", yet a pack a day in Connecticut is $3,175 a year, and at $6 a pack would be $2,190 a year. That really doesn't make $128 for a VMax look quite as lavish.
And I appreciate your concerns for my personal privacy, but I'm really not worried about it. I think I'm among friends here.
Let's keep the squabbling to a minimum, shall we? I've given a carefully considered answer to the OP's two posts, and I'd like to just let my previous comments speak for themselves.
More on-topic -
I like having a separate, dedicated DCT tank for each flavor. I'd recommend at least five, and ten would be better. All in good time, of course.
For tasting different flavors, the best thing I've found is to use a 306-style atomizer with a drip tip. The 306 is great because its little hole on top allows you to squeeze in one juice as it displaces the previous one, allowing you to taste each one with little cross-contamination of flavor. Catch the drips in a bottle labeled "?????", and try the contents when you get bored.