I may end up someday becoming the godfather to this blend. A bit of history....

I live very close to the area this has originated (TX). Like others that have indicated, I also am very experienced in the smoking "herb" world. Very educated in botany (phD) and various "relatively unknown" hallucigen species that grace our fine country. The low-down....JWH-018 is illegal in most countries nowadays; however no analytical studies have produced any health effects from this natural occuring chemical compound. You will find JWH-018 in Spark 20. Spark 20 is just ONE blend out there nowadays. SWIM has tested various blends besides Spark 20/30 to include: Purple Haze, Orange Cush & Chocolate. Spark 30 is bomb and Purple Haze is a bit more chill. Currently the U.S. is not pursuing this because of the difficulty to regulate via UA/Saliva/Follicle testing. I know this because I have tested myself under lab for 2 months now....which produced solid-lined, negative results.

Now for SWIM's physical results based on 15 min after hitting a one banger:

1 hit: Little-Nothing
2 " ": High
3 " ": High High
4 " ": Stoned - Ripped

That the bottom line folks. This varies based on the blends SWIM has mentioned. SWIM's personal feelings are that follow-up tokes are merely "OK". The first one is a INTENSE wake n bake that may last nearly 2 hours! Down here it is expensive running 30 bucks a G but is a great legal alternative. It's amazing that website like Amazon.com readily sells the stuff for the going price at head shops? Bottom line, this stuff is bomb.