I'm with Danny on this one...except for the Prime15. I didn't like any of the Halo juices, but I did like Casablanca from BWB, and Dark Horse form HHV. I tried to clone Casablanca at first and had some near misses, but Eventually I came up with my own mixture which IMO is a lot better. I'm vaping it now as a matter of fact. It's Called CELTA, and is a mixture of 2 tobaccos, peanut Butter, and Cocoa.....Luv it!!!! Dark Horse, one of the best juices out there (my opinion) came to me by accident while testing some of E-cigarette Express' Flavor Express tobacco flavors.
According to my Database I've made close to 300 juices, not counting straight up flavors and NETS, But I only have about 20 juices that ended up in 30ml bottles. It's the hunt, as much as the trophy.
These 20 juices are better than anything on the market since I've last bought a juice(about a year ago).
Moneywise it's getting cheaper, because I'm only re-purchasing the flavors I like.....well, except for German Flavors; I bought a few and loved most of them, so I GOTTA try some more.
But I do look at recipes, and clone recipes because it gives me ideas, but in the long run even recipes are someone's personal cookup, and may not work for everyone else.