I called BOP and they said they have 0 change in score since the day they started doing regrades. The process is computerized so of course the computer isn't gonna change its mind. They don't offer manual regrades. They take the raw score from the computer and scale it, and there you get your composite score.
I also looked deeper about this scaled scoring...bottom line the harder the test the more lenient the scoring is. For example, if you had a harder exam and missed more questions the passing score based on the scale might even go down to only 50% correct answers. So probably better to get a harder exam than an easier one. Maybe that's why I still failed even with average scores in all areas.