Yep. That's pretty much what we did-- go to THE spot and wait.
I'd say a third of the mornings I was close enough to the turkeys to hear fly-down from start to finish. On another third, the gobblers were sounding off, but waaaaay off the property. The real killer was that for a good third of the mornings, there was just dead silence.
Everyone I talked to said this was the strangest year they'd seen.