Sonar will help you with all fish and all presentations. Fishing swimming lures for walleyes is a really good example. Use a lift fall and let the lure pause at least 10 seconds, as the lure stays swimming and moving in a semi circle for a long time. When a fish moves in, using jiggles really helps to get a take. It's more difficult to present anything on ice without sonar, and swimming lures are no exception.