WillR, I have fished DH several times. There have been numerous large tournaments there as well. I don't think there has ever been a walleye iced, at least not that I have heard of. Others may have different intel. I never had one hit a shiner on a tip-up or on a spoon jigging. They are in there as the PF&BC has stocked thousands and I have seen pictures of some very nice ones caught by guys trolling in the open water months. Like many Pa lakes, they are just tough to come by through the ice. I have to say that my fishing trips have always been daylight affairs, as are the tournaments, so you may want to consider a late night, early morning go at it. Good luck.