csullivan,
My first thought is: Adding bass, or any preditor when you are already bass heavy doesn't sound like a solution. Surely I'm missing something here.
I would think the evaluation from the survey would have recommended removing a slot bass, say 10" to 12" & alot of them considering it's a 15 ac lake. But then I'm not the one getting paid for advise, meaning I'm no professional. I'm sure some of the more knowledgeable ones here will be able to offer some help.