Yeah, mine is oil based which surprised me. It crashes every time, so I have to heat it before pinning and let it recombine... It's a bit of a pain in the ass.I have purchased that but won't be using it for some time. Also purchased many other compounds I'm gonna make my way through first.
Is yours oil based? How long does it take to kick in preworkout? Does it send your heartrate through the roof?
As far as the timing/effects, it takes about 1 hour to kick in (seems to depend to some degree where I shoot it) and I've never really noticed anything with my heart rate....