I've looked at the bump up/down percentages for the 3.0, 3.5, and 4.5 levels. Now the 4.0 level for men and women by section.
Here are the percentages of bumps up and down from 2015 for the 4.0 women.
Here we see a mix of some sections having more bumps up than down (4) and some vice versa (13), but none with even 8% going either way, so this was a relatively stable level. Midwest did have the most bump downs while Eastern, Pacific Northwest, and Southern Cal were in a virtual tie for the most bumps up.
And the same for the 4.0 men.
This is not as balanced as the women, there were a lot more sections with more bumps up (13) than down (4), and Southern Cal had over 9% of their 4.0 men bumped up, and Caribbean, Florida, and Middle States weren't far behind.