Oh wise one. Any trip to the Yellowstone would be to simply sit and watch the master. I would even be willing to fish with yarn only, sans hook, just to make sure the master retained his purple robe.
I will be offering my own sacrifice on your behalf. (It's actually a hemlock out back that we wanted to get rid of anyway.)

You might see if there are any reports on the St. Joe. I heard it fished real well last year about the first week in August on dries.

Chopaka was a kick. I heard that chronies also worked well. I just needed a master to teach the fine points in color & presentation.

Have a safe trip my friend.