I don't know if this would be helpful to anyone but last week I went in and jotted down what the range of sub-sliders totals were to maintain the particular global slider values.
Global Slider Value| Range of Sub-Slider Totals
00| 288-300
01| 273-287
02| 258-272
03| 243-257
04| 228-242
05| 213-227
06| 198-226
07| 183-197
08| 168-182
09| 153-167
10| 138-152
11| 123-137
12| 108-122
13| 093-107
14| 078-092
15| 063-077
16| 048-062
17| 033-047
18| 018-032
19| 003-017
20| 000-002
Ex. Say you set your global slider to '15'. By default, the sum of your 3 sub-sliders will be 75 (25 x 3). But, you can maintain that '15' global with the sum of your sub-sliders being anything from 63-77.
This might be common knowledge....
It's more for the folks, like me, who struggle with whether to adjust sliders or not. This allows me to make adjustments while maintaining the global slider value of a particular difficulty level so that you can look at yourself in the mirror.