I am hesitant to call this a Sub Zero clone, but I am liking this as much as I did Sub Zero. I stopped vaping Sub Zero mainly because of cost. At $20 for 30ml of juice I would be spending about $60 a week for my vaping habit. I started making DIY juices almost a year ago, but I never attempted to make a menthol juice until about a month ago. I was afraid that I would come up with something that tasted horrible. I decided, what the heck, if I don't try I won't ever know. So my first attempt was 50/50 PG/VG, 3% Flavor West Extreme Ice and 5% Flavor West Vanilla Custard. I filled my tank and took a vape and wow, it was great. It had that icy chill that I like so much from Sub Zero with a nice sweet finish that the vanilla custard gives it. I can't say it is just like Sub Zero but I like it and that is what counts. Yay for me!