Black Lake is worth the trip. Don't be afraid to use top water lures such as poppers and jitterbugs no matter what time of day. Some of the best Largemouth and Smallmouth fishing I've ever experienced was during the heat of the day in July and August in years past. As for locations on the lake I can't really help. The times I've fished there I was a guest on boats run by locals. It's a special lake.