Here's a concrete example for you...Let's use my favorite local private school, Kankakee Bishop McNamara...2 years to lose the multiplier...Actual enrollment 347, multiplied 572.55.
Football...The Irish won a state 3A title in 2015 at 13-1...16 miss the playoffs at 4-5...17 miss the playoffs at 3-6...Under the two year multiplier rule, Mac is now in 2A because they haven't won a playoff game in 2 years...2A has 4 unbeaten in the semis right now, but Mac clearly would have been dominant in 2A...It would be patently unfair to put a 4A favorite in 2A because of two bad seasons against jacked up competition...A 2 year multiplier rule in football almost screams for districts to balance regular season schedules for the smaller private powers...instead of being 5-4 losing to schools 2-3 classes bigger in the regular season, they would be 7-2 or 8-1 beating up on a 6-3 in the first round implementing the multiplier...And if you want the 2 year rule, don't weight the regular season...play 2A all year, then have the multiplier kick in and put you in 4A..
Basketball...Let's say you have a 6 team regional...a 2A regional with Mac could have any mix of Peotone, Wilmington, Reed-Custer, Momence, Clifton Central, Watseka, Herscher, Dwight, Seneca, Paxton-Buckley-Loda, Beecher...a 3A regional could include Manteno, Kankakee, Rich South, Rich East, Southland Prep, Pontiac, Prairie Central, Coal City, Morris, Rantoul, Plano, JCA, Providence...But you have to win the regional to get the point? Regular season doesn't matter? I have seen spans where Mac kept losing regional title games to schools which were having historic years...i.e. Herscher, then Dwight, then Watseka, then St. Anne, then Momence, then Manteno...Realistically, making the regional final should be the key, not winning the regional...
But there are sports where Mac maybe doesn't need the multiplier...soccer, lets say, where they usually get hammered by Herscher/Manteno/Peotone by 5 goals or worse...Wrestling, where the Irish have trouble fielding a full team - but weighted are still 1A...