I agree. When I take Creatine I make sure I drink LOTS of water, up to one gallon per day.
When I dehydrate myself before a contest, I never stop my water intake. First thing, I get off creatine two weeks prior to dehydration. And one week before the show, I begin upping my water intake to TWO gallons per day. I continue at two gallons for four days and the last two days I am sipping water, maybe drinking a quart per day.
This tricks the body into a habit of flushing the body of excess water. At the end, water is decreased buy the body keeps flushing fluids. If done properly, it gets the water out of the skin, giving you the ripped look.
The key [and I'm no expert] is to not cut out water totally, but only limit it at the end. Muslces need water to get a pump where they are full and hard looking. Vascularity can also suffer without enough water in the body. And cramping can be a problem if the muscles are too dehydrated.
I have never wrestled but I take my hat off to them. That is very hard work when there is little calories coming in for energy.