This is wrong "board", this is for mod progress and initial implementations, not requests for new features.
For request it self, I would never put 12 parameters to control this, as would only make mess in code.
Correct solution would be more one parameters like:
imporveStatsThresholds:
1: [0, 1]
2: [1, 3]
5: [1, 4]
10: [2, 6]
For implementation itself, for now I do not have free time (and I have multiple "due" requests), this mean I would not implement this, if Meridian would be interested then he could do it.