Dave, >>...not work very well for AMM, as ... very flexible in cell size... Do you think each race could have a mean or a median size around which variations could be measured? I suspect bees don't want to raise one-size bees. I'd think a colony that has a range of bee sizes is more adaptable to its floral sources etc. throughout the season. Waldemar -- Visit www.honeybeeworld.com/bee-l for rules, FAQ and other info ---