You are on the right track. Deep water humps and ledges with carolina rigs. Locate the fish and they can be caught. All that being said I find this time of year the most challenging and I actually hate summer. It's too dang hot and I find the fishing to be slow most of the time. Fish really early a.m crack of dawn or at the end of the evening with some topwaters and you'll always catch a few. In my humble opinion fishing won't get really good again in the big lake until late fall. Find a good creek to wade or the Cumberland river. These kinda places can be great retreats to get away from the heat and the crowds and the fishing can be really good in these waters. Just remember they won't be as big on the whole as that of lake fish but on light tackle they can sure be a blast. The night bite can be good sometimes with big fish caught so if you can sneak out for a night bite every once in awhile try to do so. I have yet to hear of a real good night bite anywhere yet, or at least anybody sharing that info anyway, lol.