Different strokes for different blokes. What may work for some may not work others. I never thought about getting into sumo wrestling (although, never ruled it out either). Rather than heeding the advice of 'eat-more!' Or 'eat-less!' I'd recommend just do trial and error and evaluate what works best for you individually over time. I didn't always follow this lifestyle, just gradually iterated into it after a great deal of introspection to see what works for me at the current moment. To that end, I have found regular fasting to be an important part of the balance.