The possibility of outlawing mixing for personal use, even from pre existing supplies, is chilling. The vape shops and larger commercial e liquid suppliers aren't sweating because they will cut themselves a deal that we will pay for.
The shops and commerical e liquid makers would be ecstatic if DIY were outlawed and we could only obtain their products at their prices. They don't care about taxes since we pay those, not them. Prepare to be sold down the river. If you are getting a creepy feeling at your local vape shops lately, like I am, may be you are the chump, not them.