Although not proven yet there is a great deal of evidence showing that Largemouths and Walleyes do not thrive in the same body of water. There are a number of lakes around that are showing this trend and all of which used to be some of the best walleye fisheries around. Sissabagama, Upper Long, Island Chain of Lakes, (Balsam, Round, Butternut all in Polk County) just to name a few. I don't fish the Flowage but I do have friends that do and they say that the walleye population is down out there from years in the past hence which maybe the reason crappies and largemouths are doing so well there. I stay on Sand and for 25 years we maybe caught a half dozen largemouths and now the past couple years we have caught quite a few. I sure hope this lake does not fall victim to this as well. My advice is to keep them all! If you don't want to eat them I am sure someone or something will.