Do you think they can do that for all students?My guess is they must recalibrate. For example my HS IIRC was on a scale where 4.6 was A+ and say you got an A+ in an AP or Honors course it would count as a 5.6.
When I applied to law school, my RU GPA was also reweighted because RU doesn't use minus grades. While a B+ at RU was 3.5 in the national scale it was 3.3. That is actually another great reason to go to RU that no one realizes, lol. Where as 90 average at some schools would be a 3.67 at RU it's a 4.0.