All good pointers MUZZ, and those are effective strategies. However, I hunt idaho bulls in october as well and here are a few things I have learned in areas I hunt. First and foremost, The rut aint over quite yet! Those big bulls that are not worn out yet are still hangin out with late cycle cows. They are not bugling as much, if at all. But they will still answer a challenge if it comes from close up. Alot of people will scoff at this, but it is the truth, I have seen it. Take your cow call with you and plan on getting up close to em. Find a group of cows and odds are a bull is still close by. If not keep moving and looking. Fresh rubs are a sure sign of an active bull.
Go with MUZZys advice as well, but just keep this in the back of your mind.
Good luck!