Although I removed the sourcey stuff from your post, I suspect we may have sampled the same batch of 6-APB (albeit mine from a totally different source). If you were meaning the "pre-release" stuff I would have to agree that that stuff was incredible. Quite possibly the best drug I have ever sampled. Perfect mix of MDMAesque and light hallucinogenic qualities. Insanely euphoric, rushy as all fukkery but never crossing the line, lushy bodyfeel, great duration, no obvious comedown (from one-off doses). In hindsight I highly doubt it was actually 6-APB, 6-APDB or any other widely-released chem I have ever come across. Real shame cos whatever the fuck that stuff was it really would have been in with a good shot at that long-promised Third Summer of Love.