Well I'm back home and we actually never made it to the Buzzard Bar at all.

Some things that contribute to slower growing fish are:
Stress
Poorer water quality
Higher fish density (that would be under both of the above depending on quality of filtration)
Water Temp

In talking with the Purina Rep at the Conference, he said that from Fingerling to about 2#, the FCR on LMB being fed their food is right around 1.7.

www.hoosierpondpros.com

[Linked Image from lh6.ggpht.com]
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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).