Not sure how RES would do in Pennsylvania. I think they're more of a southern fish. Maybe Pumpkinseed?
Good point. I didn't check Booner's location before commenting. Pumpkinseed might be a better choice than RES.
The RES do well here in Missouri at 38.9° latitude, but we typically don't see extended periods of ice during the winter.
Would probably be worth making a couple phone calls to the commercial fisheries in his neck of the woods to see what they recommend for that area.