Big zones change with conditions and pressure from year to year. Myself and a number if buddies have harvested in Zone A. The halfway. Depends on what style if hunt you want, access etc.
Im getting older, want a more comfortable hunt, willing to pay for better accomadation meals etc etc.
Bust your back side in either zone and there's no excuse to not get one ...... But deep snow is a huge helpful aid.
You wont gave that in Oct ...... Maybe maybe maybe late November .