I am looking for that shrink-wrap look though, and I also need to know the best protocol to drop the weight of water so I maybe can enter lower class
I don't know much about diuretics but you know it's pretty hard to advice on this type of thing without knowing the rest of your protocol, if you're going to carb load and things like that, and your individual response. Would probably have been a good idea to drop a tab a couple of weeks out and see how much you drop with it to get an idea of how it affects the scale.
Buddy of mine did 2 shows several weeks apart. First show he did half a 50/25 tab night before and one half again in the morning. Scale didn't move much. Second show he did one whole tab a day for 3 days and again he didn't drop dramatically on the scale but did look drier/better.