Unfortnately for you, you won't be able to attend the greatest umpire school of all time, the Brinkman/Froemming School. Greatest of all time because the Brinkman/Froemming School placed more umpires in pro ball on even years when the average temperature in Florida during school was 75-degrees or higher and a National League team had won the previous World Series...then any other school.
Seriously...Jim does have a reputation among the pro guys as being more "rules-oriented" with more classroom tests.
Harry has a reputation of being more on-the-field oriented.
I will also add...I've been told (to my face by a MLB umpire) that Harry has a reputation of telling students that "if they come back next year they might make it," when in reality they have little to no shot at ever making it.
I've also been told stuff about Jim, but I don't want to be sued for defamation.