I wouldn't write off commercial varieties. Galarina, enterprise, sundance, yates, and granny smith, Even heard red delicious has a good later drop time.
Hate to put up all these crabapples and not have a few regular ones around. For guys who dont enter the bulk of their property, put some liberty trees near the cabin.
Wish RE gould was on here more often. He found one about 10 miles from where I hunt. Cherry Valley. Got to get there next spring.
Does your chestnut, dolgo's, trailman, and kerr make crops every year? I got young ones at home and they all wake up pretty early versus regular apple trees. Notcing Violi and 30-06 are probably 2-3 weeks later to leaf out.