Ok, make that any pair of numbers.
My sim has an interface for 3-digit ratings input, so I can do
this fairly quickly.
If we compare ATE (all teams equal} results to the case where
the field is 500, and our key posts are 600, we find the following:
Q# ATE 2 best 12 15 6 13 15 6 14 18 7 15 21 8 16 24 9 17 28 11 18 28 11 23 15 6 24 18 7 25 21 8 26 25 9 27 29 11 28 28 11 34 25 10 35 28 11 36 28 11 37 29 11 38 26 10 45 45 18 46 40 16 47 34 13 48 30 12 56 72 29 57 51 19 58 38 15 67 91 36 68 61 25 78 106 46
The results given are ratios, rounded to whole numbers.
Eg, with ATE, 78 is about a 1 in 106 shot, with 7 and 8 best,
it is about 1 in 46.
I am too lazy to tabulate the percent change for each case, but
that is the next step.
Of course, going from 500 to 600 might be a little too extreme.
It is possible that you are more likely to find value with the
"bad" numbers. Assuming your ratings are really valid.