I mixed RY4 with the VT nic. It tasted better than Hangsen's premixed. I've also noticed a richer tobacco flavor with the Inawera flavors. I'm tasting tobacco like I never did beforeTrue .. making mostly tobacco juices ... you're better off sticking with what you use.
Vapers who like there fruits, will be the one who notice the difference the most.
Me ... old nic base for the tobaccos, and VT's for the fruit and light flavors
Those flavors stand out now , and aren't buried by the base.
tobacco's, I don't care, or see much difference, because the flavoring is "heavier" to start with.