I'm not going to lie, I plan to pick this one up the first chance I get. But having read the experience reports here on BL, and talking to a trusted source/friend majoring in pharmaceutical chemistry with extensively more benzo experience than myself (and I'm a true benzo-head) I have a healthy fear of the drug.
Absolutely do not dose yourself unless you have done the research online and have an incredibly accurate and most likely expensive scale, one that distinguishes between micrograms, as has been said before.
That or carefully dilute the powder in a liquid solution that will allow you to dose exact quantities. The half-life of this drug lasts forever, and you'll feel really, really nice which will make you wanna re-dose, don't. You'll still likely be intoxicated and not even realize it. Use once a week max until you develop a familiarity.
Enjoy with extreme caution.
I speak from jealousy but largely concern.