Blue Marsh for me is over 20 miles away and I can tell you that in a solid week of fishing, 7 days in a row we had 3 days with zero, 2 days with one fish, one day with 2 fish and1 day with 5 fish. That was fishing with a friend that really knows the lake well and he says exactly the same thing you do. If you get the right day you would be surprised how well you can do the only problem is there is no 2 week window that the fishing is good, it is more like a 2 or 3 day window and where you find fish one day you may never find them there again. I think the smallest bass I ever caught there was 14", like you said, most are keeper size, very few dinks and thats why I asked questions and that is when the biologist told me about the flood control and why there is no weeds or a larger population of fish. I found the most consistant fishing and easiest place to fish blue marsh in the summer is back in the tully, forget the main lake although there are some points on the main lake that I caught fish off in the early spring, specifically one point at the entrance to spring creek. I fished a lot of lakes in PA and else where, the other lakes that are close to blue marsh in terms of being tough is Guifford Pinchot, Nokamixion, and Wallenpaupak, those lakes are terribly managed. As I said, I never encounter such terrible fishing outside of PA, and I often write to the fish commission and attend meetings to try to adopt other methods of fish managment or even recruit some out of state biologists and fishery managers that know how to fix the problems. All of our larger lakes have very low fish density and are far from healthy but our current fish commision does nothing, and from talking to other authorities on the problems I have been told the only way to begin to get thees lakes in better shape is by aggressive stocking of both bass and forage fish. I'm sorry if I offended you by calling blue marsh the dead sea, and you are right, other lakes are just as poor but it is all of the PA lakes, we have people inplace that do not know how to manage a fishery.