My guess at 4A:
17-ECC, Gary West, Morton, Gavit, Highland, Griffith, Lowell, Hobart
18-Clay, St. Joe, Riley, New Prarie, Plymouth, NorthWood, Culver, Kankakee Valley
19 or 20-East Noble, Angola, DeKalb, Leo, Wayne, South, New Haven, Northridge
19 or 20-Logansport, Huntington North, Mississinewa, Marion, Jay County, Columbia City, Wawasee, Delta
21-Western, Lebanon, Frankfort, Shortridge, Cathedral, Crispus Attucks, Mooresville, Martinsville
22-Greenfield-Central, Beech Grove, Roncalli, Greenwood, New Castle, Muncie Central, Mt. Vernon, Pendleton Heights
23-Richmond, Connersville, East Central, South Dearborn, Jennings County, Madison, Silver Creek, Shelbyville
24- Ev. Reitz, Ev. Central, Ev. Harrison, Ev. Memorial, Boonville, Jasper, Northview
made more sense to send Northview south than Silver Creek west. Plus, this splits Cathedral and Roncalli. (I know. Pipe dream that won’t happen, but it makes a lot of sense on the map.)