This is true only for that class regional.You can not conclude that this class regional is tougher than any other based on the info I've
seen so far.
quote-
Your best kids are tough no matter the size of school. But over the years the parody and more evenly seperated competition has come in the lower classifications.
If what you mean is that because there are so many wrestlers at 4a 3a regionals that alone makes the regional tougher you are right but only for that class that regional.
It doesn't follow that 3a 4a regionals are tougher than 5a 6a.