Cecil brings up a good point about optimum water for LMB growth even for northern LMB that have been stocked into a pond capable of sustaining trout for 10-11-12 months of the year.
I think LMB grow best at water temps between mid 70's and low 80's. LMB will no doubt continue to eat at water temps even in the low 90's, although Mr. Mason will not get these temps. His highest water temps will probably be an occassional 76F-78F and most commonly the low 70's during July and August. The growing season for LMB at his location will be relatively short, thus growth of his LMB will be slow as Cecil mentions. NEM should consider his efforts quite good if, after the bass reach 14", he can get 1" of growth per year. Growth of his LMB in cool water habitat is more likely to be around 1/2" per yr.
