MSML would run through DIII-VI, annually making it to the regional finals or beyond. In DII, they would still have a winning record and host a first round playoff game.
I truly believe that MSML would beat about 20-25% of DI teams on an annual basis (Region 1 - Normandy, John Marshall, GlenOak, Elyria, Euclid, Stow-MF; Region 2 - Beavercreek, Central Crossing or whichever Southwestern district school was down in a given year; Region 3 - Watkins Memorial, Lancaster, Westerville Central, Thomas Worthington; Region 4 - Little Miami, Walnut Hills, Western Hills, Colerain).