There are almost 1000 hits in the archives for "Ross Rounds", inluding detailed recommendations by actual experts. "https://community.lsoft.com/scripts/wa-LSOFTDONATIONS.exe?REPORT=BEE-L&z=4&L=BEE-L&1=BEE-L&X=O54CE77B660A9014808" The consensus, I think, is that strong standard single brood chamber colonies are the secret to successful RR production. *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html