Generally, I fish the Whirlpool and occasionally at Artpark with Greg. The 'pool has some places where flies can be swung to advantage and I've hooked fish there at times. Like you mention, when they get in the current, they're usually gone. The small ones get landed.
My last time at Artpark, I picked a bad spot for my upriver casts were going into that long back eddy that runs along the shoreline for a ways. I'd cast upriver and my line would keep going upriver!
Joe & I were talking about the possibility of skating minnow patterns at the surface as the fish are often seen boiling on top and the spoon chuckers take fish with very shallow running lures. That would be a lot more fun that dredging the bottom.
We'll see how it works out.