All members have good input here, that is what makes this pond management forum GREAT! Numerous members have smallies in their ponds with varying degrees of success. I have raised smallies in a 1/3 acre, mud bottom, 7 ft deep pond with the splash zone lined with broken concrete. Feeding them pellets grows great smallies. See this link for info of how several members here are pellet training their own fingerling smallies.
http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=301044#Post301044See this discussion for one option of using SMB with LMB and BG.
http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=301048#Post301048I think that when you put SMB with BG-LMB the level of management is great for both SMB & large BG to succeed in the same pond. SMB need to be periodically restocked for them to succeed long term. Larger SMB at 8"-10" for stockers are expensive if you can locate them.