Yeah I did some more reading and figured 48 hours, but I might go with 3 days just to be safe. I had my last smoke around 4pm sunday, so I'll wait till weds night to start the course.
Also, I'm fairly sure this isn't the case, but are there any other recreational drugs I should avoid? Aside from the obvious (meth/coke/MDMA/and I'm assuming 4mmc and all similar stimulants RC's).