I've got some coming in at 60/40, and I was bit worried as well. Thanks for sharing that you haven't had any issues and that the vapor production is intensified! 
Curvy...I received my first order from them yesterday. Everything smells wonderful with no funky smell at all. I put them away to try in about a week or so. If anything, giving them a chance to blend the flavor in each bottle.
I purchased:
Coffee with Creamer
French Vanilla
Mango Peach
Pomegranate
White Chocolate
Have you tried any of these flavors yet? If so, are they pretty good? I took a gamble with the white chocolate. I've tried a few vendors to no avail. I hope this one is better.
"Mountain Dew – More acceptable than Vanilla Cola since the citrus kind of hides it, but still way too fizzy to it to be enjoyable"
Are they fizzy, really? So do you literally get a fizzy sensation when you vape it? That sounds cool! Never had a fizzy vape!
I don't know how it's done and I've never experienced it with Rockstar like the person you quoted, but Breezesmokes has some fizzy Rootbeer! It's really good and you do get like a fizzy sensation. LOL
Are they fizzy, really? So do you literally get a fizzy sensation when you vape it? That sounds cool! Never had a fizzy vape!