Well shortly after writing the original post I had drank 2 additional liters of water. I decided to re-test myself after about three pisses. Wouldn't you know the test now has a DARK beautiful purple line on the test as well as the control. My test is Tuesday so here's what I'm going to do:

1) Keep drinking 2-4 liters of water per day
2) I started creatine loading yesterday, I'll keep that up
3) I already take several vitamins, including B-12 so that will keep my color healthy
4) I'll drink plenty and check myself before I go test, to make sure I'm good to go.

I think after 30 days I'm right on the hairy edge of 50ng. So adding a little extra water will put me well below the mark.

Thank god I don't have to substitute. Although I was staring to prepare myself tonight. I was going to utilize two avenues for substitution. I bougth the human urine with the 'pouch' but was uncomfortable that they might ask me to lift my shirt. I bought a digital therm, thanks to N2, some rubbers and a 2 oz (60ml) Johnson&Johnson shampoo bottle. I was going to practice moving, walking and generally keeping the temp up. My piss comes out at 99 deg. So this was what I was shooting for. With the jergens bottle I was able to keep it at 98 deg stuck in my scrotum. The same with the rubber.

Thanks for the tips and all the previous forum info...