Two years ago I switched from red dot sights on both my BPS and SBEII to TruGlow sights. After dropping a gobbler with my BPS, I leaned it against a tree. That must have pushed the front sight, fiber rod, just enough to get it unseated. When I picked up the gun it was gone. Before I went to Iowa this year I shot the SBEII 5 or six times at a pattern board. The pattern looked like it was dropping. The front sight was loosening up and rising with each shot. I put it back, tightened it down. Shot it again the day before hunting. Successfuly hunted with it, then when I checked it back home one screw had come loose.
With all that I still like the Tru Glo sights. I can now shoot both guns instictively to get on a bird that is moving fast or kill a standing bird, with out worrying if my battery will run out (I always carried an extra and put a new one in at the beginning of the season) but that's no help if you forget to turn off the red dot in the excitement. Also like the lower profile of open sights vs a scope.
Fact is in turkey hunting one needs to balance their abillity to use their gun, with type of sights, pattern and distance to the target. Another words if you can hold steady, and you can get each bird to still, by all means shoot those ultra tight patterns with a scope or red dot. If that's not the case every time rethink the balancing idea and consider some type of open sights, a less dense pattern and getting that bird in a little closer. That runner won't catch you by supprise.
Ralph