>         This is a long way of saying that I would not trust bar type queen
> excluders to work with every queen; particularly a swarm queen who may not
> have a full load of sperm.
>
John,
I agree that a virgin queen not yet laying could go thru todays queen
excluders. Most swarms are led by the old queen but even she has a
smaller size because of the stop in egg laying prior to swarming i
suppose.
Also i see the old queen excluder-honey excluder issue trying to raise
back up! I have only seen bee-l archives on searches i have done to keep
from repeating issues on posts i have made but feel certain the excluder
issue has been discussed before. I have seen beekeepers almost come to
blows over differences of opinion on the issue at beekeepers meetings.
Hope to go and read all bee-l posts next winter when time is not a
problem.

Happy Beekeeping!
Bob Harrison U.S.A.