I have hunted Ontario for the past 9 years . I hunt the first week & have taken a bear each year including 2 P&Y my wife has also taken a bear each year 1 P&Y
& a couple of near misses on the P&Y front. We prefer the early week because many of the berries are not at full ripeness yet, that seems to happen Labor Day week. Which we hunted 2 years " not fun" the bears would walk past a bait & not even look over. Also the weather seems more stable early & once you get past the opening of grouse season unless you are very remote expect some activity from the bird hunters. Hope this helps just my thoughts.