Not sure if you understood where BT was going. It is well within the realm of possibilities that you smoke so much that the amount of water you would need to drink to produce a negative result would trump your attempt to creatine load. The only real way to tell would be to start loading in a couple days and do a test dilution run of your own 2-3 days from then. Buy a urine test and some adulteration strips and wake up in the morning and start to follow your day-of-the-test regiment like it were the real thing. You'll have a good idea if you can pull it off but I'd wait until you at least have 5 clean days to give yourself some time to shed a bit of your stores... good luck.