It all depends...
are you happy with any turkey, which may be an 8 pound YOTY hen OR are you going for an adult gobbler only?
If any turkey is good, then there is nothing like busting them off the roost in the morning but you have to SCATTER them, not just flush them all in one general direction. If you can scatter a flock though, it is just a matter of time before those turks start calling and running back to where they got split up. It can be quite comical though as they come back calling their heads off trying to group back up. (You could also let them roost and then bust them off the roost in the evening and return in the AM.)
A good blind, a decoy and a key-key run call and you are set and if you miss the first one, stay put, you can get multiple chances as the birds will not all return at the same time.
The only things I have seen that will derail this setup is:
1. The birds return and begin to assemble 50-100 yards away or so and then the momentum builds and the flock reassembles within earshot but out of bow range. If you sense this happening, then bum rush those birds ASAP and then get back to your blind and start over. If you really are able to scatter 60 birds originally, then "double flushing" a few of them will not hurt your chances a bit.
2. You spook the flock but they all go the same direction. They will then re-flock much nearer to where they end up v. where they were flushed from.
Gobblers are a different deal though. I have never seen them be too eager to group back up. Setting out to kill a fall gobbler AND then doing it might be one of the toughest hunting tests out there.
