Glad you mentioned this Dave. I started doing this about a month ago and was pleasantly surprised. When I mentioned this in the DIY forum most people just rated my post as funny. Not sure if they thought I was joking or they were just being polite as if to say.....yeah right.90% of my DIY juice is unflavored. The ones I flavor at normal percentages are used as additives to my unflavored tanks. I mix them at generally recommended flavor percentages, but hardly ever fill a tank with them. I'm stuck on rayon for wicking. It's amazing how your taste buds perk up when you flavor lightly.
Now, I do find it does not work really well with some Chocolate flavors, but works best with fruit and tea flavors, which is what I vape the most of.
BTW I hate (when wicking a coil) in an RTA the pieces of rayon that are discarded as we cut to trim and form the wicks gets all over my work space. I sometimes feel like I have to hurry to finish and clean it up as it drives me nuts. lol...... yeah, I know, some of my OCD is showing.