Hey nehunter,
That is quite the BOW you have there!
Are any of the trees worth harvesting to someone in your area; even if just for firewood? Maybe give the trees away free if they cut them and haul the brush to shore?
As you already know, and I agree, you did not stock enough fish the first go around. The fact that the lake is full of GSF makes me suspect not many of your 2 to 3 inch stockers survived or have managed much recruitment.
... Do HSB like open water more than trees, or maybe blue catfish or some other fish.
My understanding is that HSB prefer open water. GSF do not. I doubt the HSB will help with control of the GSF. The HSB would probably target your young crappie instead. Have you looked into HBC (Hybrid Blues, a cross of channel and blues)? What ever you stock, IMO I would go with 4 inch+ stockers to avoid predation by the GSF. In a year or three the GSF will go from predator to prey!
IMO I would take TJ up on his offer for a consult, even if it's just a phone call. He was nice enough to spend an hour or two on the phone with me a couple years back and it was definitely time well spent. Guy really knows his stuff.
Good Luck,
Bill D.