I talked to Greg about doing a test on the F1 tiger bass and seeing how they did in central Indiana I thought more forage fish might help to...I also thought that maybe you reach a point where it can't get any bigger...Yesterday the bass were in about 1 to 2 feet of water just off the rocks and we got 14 in 2 hours in 98 degree heat (on square bill crankbaits)..I would think that would say something about the oxygen level but I'm far from a expert...