At BJJ training yesterday, the teacher made the point that BJJ is like Goldilocks. At the extremes, your opponent (or you) may have an advantage, but in the middle it’s the opposite. An example is your leg positioning - if your legs are together, they’re strong, if they’re wide, they’re strong, but there’s a range in the middle where they’re weak. And BJJ is a game of finding and exploiting those ranges.
I like your new writing style of capturing one golden nugget succinctly... and perhaps it illustrates today's nugget very well!