I just finished mixing my first batch of DIY liquid. After asking stupid questions and reading and reading forum posts, I FINALLY realized that the flavor I had been buying from Liberty Flights as well as chasing and trying to better was none other than a Hangsen flavor. I was directed to Ecigexpress where I ordered what I hope to be the first of many baskets of DIY supplies and Hangsen Highway flavoring I mixed a test 10ml batch of 50/50 PG/VG with 10% Highway and WOW! The angels are singing as I sit here dripping it in a fresh atty in my ZMax. Thanks to all who share their in depth knowledge with us here... Even if there aren't thanks and responses to your threads, we are grateful. After a year of iffy purchases and dozens of bottles of unused liquid, I feel as if I'm now a grown up Vaper! I've come a long way from crappy batteries and prefilled carts, thanks to this site..