>Excluders work best over _single brood_ chambers and require careful and
conscious management to work consistently above doubles.  They often fail
over triple brood chambers.

The programmed behavior of mid aged bees is to place honey immediately
above the brood, not above the honey band.  I don't know if anyone else
does this, but I reverse the brood chambers when I add supers above an
excluder if there is a honey band.  This puts the brood right up against
the excluder, and the bees go right up.

-- 
Randy Oliver
Grass Valley, CA
www.ScientificBeekeeping.com

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