The answers to your questions will be based on several variables. In several elk states there are several seasons typically from Sept-Nov. some bow only, some muzzle loader, multiple centerfire rifle. These go from early rut to late season and from very warm weather to very impactful cold and adverse snow storm weather. Elk will behave much differently in accordance with hot and cold weather and obviously in the rut vs immediate post rut and very late season hunting. You should really narrow down your season and geographic area and then you can start to formulate a plan. You can literally write several books on elk behavior. Obviously in the rut bulls are vulnerable, chasing them after that and into November is another story altogether. At that time they are worn from fighting and hunting pressure and are extremely weary. They eat less, stay in the heaviest of cover in places many won’t go. It’s hard to believe animals that large with antlers that size can get though miles of timber deadfall. That’s where the big ones hole up usually until mid December. They all come low after that to feed on ranch property.