I'm glad CSAC publishes these numbers. They're fascinating to see. Weight cutting sucks and is taxing on the body, especially the organs.
It's crazy that Merab, Volk, and Ilia cut ~22 pounds when they fight at 135 and 145 respectively.
For some perspective: I cut 11 pounds overnight in high school once to make weight at 119, and it was absolutely miserable.
The next year I moved up 3 weight classes to 135, with my lean weight at the start of the season at 145. My coach was probably expecting me to wrestle at 130, but there's a huge difference in cutting 10 vs 15 pounds when you have no bad weight. I felt much better during competition, even though I faced the occasional much heavier opponent.
I couldn't imagine cutting 22 pounds like those 3. You feel like crap, dehydrated, hungry, and sleeping can be hard too. Granted, I'm sure they're much more scientific about it than a high school wrestler, but it still sucks.