I get your point,even though I DIY my skills are basic and two flavor recipes are possible for me but when I start to mix six or so different flavors of clones my results are uneven.So if a mixer with some expertise could successfully clone a favorite juice for a nominal charge I'd be interested to try it.However some recipes probably can not reproduce the magic that goes into some of our favorites and we a result I will continue to give my cash to the original mixing"artist".It's an interesting question and one that I encountered myself quite recently. imo, it's not crossing any lines in that, it's an "out-in-the-open" clone, even if the recipe is freely available online. For example, I'd love to start DIYing but I have a manic job and barely time to vape let alone mix. Plus, I'm sure a skilled mixer would do a lot better than I would with the same given recipe. So long as the price was substantially lower than the original and certainly much lower than the price of local commercial eliquid, I might consider trying it and giving said mixer something practically un-cloneable as a test Just my 2c - it's more palatable than a vendor selling ejuice commercially that's nothing but a clone recipe off google.