Steve, Wilhelm is practically in my backyard and I've fished that lake for many years. In her beginning she produced some of the finest hammer handle sized Northern by the dozens. In the 70s & 80s some bragging size bass were (5lb +) caught along with Musky, Walleye, Crappie, Gills and now, sizable Northern. As time passed, the walleye became fewer and fewer as did the Crappie and Northern and so did the vegetation. Places where weeds were so heavy you could practically walk over them became barren of any growth and this continues to be the case. Bass however, continued to thrive making 5 lbs common, and 8 to 10 pounders being taken often enough that the news of such catches, just wasn't as exciting anymore. I find it amazing; the amount of Walleyes stocked from year 2000 to 2014 vs the amount of Bass stocked over the same time period. All these fry and fingerlings stocked and the walleye fishing nowhere what it was pre 90s and before trophy Bass lake projects. (
http://fbweb.pa.gov/stocking/WWCWStockingDetailsHistorical_RFP.aspx)
Anyway, I did notice last year, there seemed to be far less of the Shad appearing in Wilhelm. Don't know, maybe that's wishful thinking or, maybe I just wasn't there at the right times. But I do know, as in the past, there was not the weed growth as once was.
I had hoped to hit Wilhelm this week but with this cold front moving in I don't know if the lake is worth wasting the gas. Time will tell..................
Good fishing.