Since that last thread of testing I check every so often and haven't found anything of concern. Most recently I was testing the Vapage Hybrid and the HH.357. Nothing in any nicquid I use (Vermillion River, Copper Creek, Alien Visions, Liberty Flights, Backwoods)... although lead is listed in ppb in certain "pure" nicotine extracts but not nearly enough to trigger even the sensitive tests given to me after that first exploration. And even then, versus analogs, the risk reduction is huge although likely present at some point in some form (and it's not clear it would transfer via vape anyway).
In the coming months I'll be releasing some data from a lab that got in touch with me as a result of that thread. They did all the heavy lifting and I only provided information on major vendors, components, history, nicquids, etc. And Flavourart is also doing testing of their flavorings BTW, which should be interesting too. Cheers, -Magnus