You're muscles are almost all WATER, why would you want to flatten out? Diuretics are dangerous and not worth it. If you did came in shredded, and have good genetics, you're going to win regardless. People try to rely on too many drugs to hide their lack of genetics, lack of hard working dieting, and poor structure. Kevin Levrone used less than 1g of gear a week and worked out for 3 months before a show and took the rest of the year off. Genetics and discipline are everything in this sport. A natural Hebrew dude with amazing genetics will smoke a guy on 5g of gear a week and popping diuretics trying to become a bodybuilding champion. it's like a 5 ft 5 guy trying to make it in the NBA. if you have shit structure and poor eating habits, just give up on competitive bodybuilding. The people that panic at the last minute trying to come up with all these tricks to look better are doing that because they don't look good enough to win. And if you don't look like you can win the show 2 weeks out, you're wasting ur time.