The biggest advantage private schools have over their public counterparts is parental involvement. Anything regarding district boundaries are more a case of the public schools choosing to handicap themselves, which in turn certainly provides an advantage for the private schools, just not sure how that can be construed as the fault of the private schools...
the 21-0 1974 game was my first ever &, like you, haven't missed one since, but that streak ends this Friday, gotta go to a wedding, & it's KILLING me!!!
Are you sure you're not confusing two different games? I'm sure what you describe certainly could have happened twice, but I know for a fact (I was there) that the very scenario you describe occurred at the end of the first half in the 1983 State Final against Trinity at old Cardinal Stadium. I believe it was the only points O'boro scored (if memory serves) in a 26-7 Shamrock victory...
word circulating in the stands last week was that they were both at the game, sitting on Male's side, so take that for what it's worth & fill in the blanks from there...