Any solutions from private school followers?
Or should it be kept as is?
Wilson ... I'll give it a shot. First, I assume that for most sports (soccer track, baseball, swimming. etc.) there's no big problem. So I'd leave those sports as is. I don't know enough about basketball to suggest anything. Maybe the Reading win over Wood will put that on the backburner, though my sense from afar that the real problem with basketball is the huge--much larger than football--number of transfers in grades 10, 11, and 12. Also, maybe the big gap isn't as much between boundary and non-boundary as between urban and non-urban. This is just speculation from afar.
Now for football. Here are some possibilities:
1) A separate class is created for all non-boundary schools from 4A up and an effort is made to get the InterAC to join the PIAA and to agree to be put into this classification. (I really don't think the 5th year of eligibility is a major issue. The larger issue would be getting buy-in from the Inter-Ac as a whole since they--Malvern not so much--seem to be in love with themselves and how they do things.) That would mean about 6 PCL schools, at least one charter school, Shanahan, PCC, Erie Cathedral, maybe one or two of the Lehigh Valley schools, and perhaps the InterAC schools would form one classification. Its small size would be less of a problem than the fact that it would be very heavily concentrated in SE PA. I also strongly suspect PCC, EC, and the Lehigh Valley schools would object / refuse. But if something like this could be pulled off, the champion of this class might very well come to be regarded as far and away the best team in the state.
2) SJP and perhaps LaSalle leave the PCL and the PIAA (for football only) and play a kind of independent schedule against a few local schools (Malvern, a willing large public school such as North Penn or Coatesville, a couple of PCL schools), two or three teams from DC/Maryland (Gonzaga, DeMatha, St. John's, etc.), two or three teams from North Jersey (Bergen Catholic, Bosco, St. Peter's etc.), and a game or two against teams from further afield. This looks appealing if you have a really good team (like the Prep has had in the last several years) but it might be hard to get games later in the season (when, for instance, Jersey teams are locked into games with each other) and it would obviously mean a fair bit of travel, which is expensive. From a school perspective it would also mean that fewer games a year would be played in places where other students and even family members could attend. But if something liked this worked, it could easily attract an even higher percentage of talented/ambitious players to SJP and LaSalle.
3) (Really just a version of #2) Somewhere between, say, 6 and 15 private (probably all of them Catholic) schools from North Jersey to the DC area--Philly being in the middle--form a football only league (with two divisions if the number of schools is ten or over). Clearly, it would probably be widely regarded as a kind of super league. None of the schools would be eligible for state playoffs. One downside to this would be that a real down year would mean lots of lopsided losses.
4) The Prep could decide to place less emphasis on / devote fewer resources to football.(The school offers many sports, but it chooses which sport will get extra attention and resources. The rowing team, like the football team, gets such support.) This might return the football team to rough parity with teams like LaSalle and Malvern. As far as I remember, there were no complaints about unfair competition the first several years after the PCL joined the PIAA when it was mostly LaSalle winning five straight PCL championships but only one state championship. This would of course mean that many of the students who are drawn to the Prep in large measure because of its excellent and ambitious football program would not come. As I think about this past year's team and past the three top talents (McCord, Harrison, and Trotter), I see guys like Talley (going to Penn), Hagans (going to Duke), Cooper (going to Temple), Yagoditch (going to Harvard), Fisher (going to Bowdoin), Doyle (going to Amherst),McCormack (going to Lehigh) ,Rooney (going to Bucknell), etc. for whom the Prep's academic/football experience has been great. Some of those guys would be going where they're going regardless, but some would not.
I know the above has focused almost entirely on SJP, but my strong sense is that what drives this topic is not boundary vs non-boundary but the dominance of SJP in its current classification.