You’ve gotten a lot of good info on this thread already, but remember not everything is an absoluteA majority of what I’ve read has been related to shooting a bird off the roost in the morning, which is great when it happens. However, do not discount the time period from 9AM to 2PM. This is when I have seen a majority of turkeys die.
I hunt public land in northern Wisconsin, so I do not know how well it applies to Montana turkeys but may give you a different viewpoint. A typical day for us starts by trying to set up on a roosted bird at first light. If that doesn’t pan out, we start putting on miles on logging roads letting out aggressive hen yelps every 100-200 yards. The idea is to sound like a frustrated/lonely hen that is looking to get bred. If you are answered by a gobble, pick a tree to sit against and set up shop. With multiple people, have the caller set up 50 yards behind the shooter. From there on, try not over call. If a bird gets hung up outside of shooting range, try being silent for 30 minutes. That bird should get curious and walk to where he last heard you. I don’t use decoys because I don’t like carrying them, but this area is wooded and a bird is normally in shooting range by the time you see him anyway. This works well in wooded public land around here that receives a fair amount of pressure. It has not worked as well in more open country.
In terms of locating a Tom, this is very much like a YouTube elk hunt.
One last thing; if you are answered by hen yelps, set up and try to call her in because you never know if she will have a Tom in tow.