That recipe is 4 yrs old. And a lot has changed in the vaping game. What was really good then isn’t good now. I have tried old recipes and in most you have to boost the percentages. Not to toot my own horn but the one i have been vaping is a solid vape to me personally. I like a little less of one of the concentrates but most prefer the original i do. This is a 70/30 mix
Dulce de leche (FW) 2%
Bavarian cream (CAP) 1%
Simply Vanilla (CAP) 1%
Vanilla Custard (CAP) 9%
For others i use 2.2% dulce de leche. I like mine a little less and i mean little without losing the taste and texture of it