Late-war IJN carrier air-group limits

Would Zero, Judy, and Jill aircraft have been the main IJN carrier air wings for carriers that could not operate newer Sam and Grace types?

Probably; smaller carriers already faced operating limits in 1941, and larger late-war aircraft would make those constraints more severe.

Smaller Japanese carriers already struggled to operate their aircraft groups in 1941, and larger late-war types would make the problem worse. Zero, Judy, and Jill therefore remain plausible equipment for carriers unable to handle Sam and Grace. It remains a tentative judgment because individual deck dimensions and a carrier-by-carrier allocation are not worked through.