Hard to say, because everyone's metabolism varies greatly, as well as their excretion rate, rate of extracting THC from fat, etc. So, start from the dilution thread, and work your way from there. Buy some home testing strips off "fleabay" as everyone calls it, and a bunch of gatorade, b-vits, and salt, and start practicing. Scan a few of the threads under this one, too, because I know several people have posted what they've tried and how it worked.