Thanks Burnt, Suzie, Knot, Phat, and KW420. As I have read more and more on this board and the Marijuana.com board, I am starting to feel more comfortable about substituting. I have a couple of different donor's who I can get a sample from.

From what I am reading, it seems that preemployement UA's (I don't know what that abbreviation means for sure) are highly unlikely to be observed. I am going to do a little investigative work to find out what lab/office that my prospective employer uses, and the procedures at that lab to make sure. I have taken one drug test before (i had been clean for several years so it was not a problem at that time), and for that one I could have easily substituted as I was alone in a single stool bathroom.

I am going to start my practice tomorrow.