1: What should my gameplan be? I do not have downriggers for trolling. I am thinking maybe the dam area the humps by the dam using slabs and Inline spinners(vertical fishing)? I will bring my thumper with me. I circled a few spots in the picture below, y'all think they looking promising?

Possibly. I would look in those areas you have circled, but just deeper.


2: Is it worth to fish in the middle of the day during Summer? Yes!
Or are the fish active dawn/dusk but lethargic during the day? Someone is always hungry.

Me personally, I don't think fish are feeding heavily in the early morning/late afternoon based on time.
I feel it's a light issue. Without as much light penetrating the water, I think the larger predator fish are more comfortable at shallower depths.


3: If I were to target schooling topwater fish very early, where do I have the best chance of finding them?

Any areas that have baitfish showing have the potential for top water schooling. My experiences with fish boils on that lake have been they move fast and don't last long.
If you see one and you have something on that you can cast far, take a whack at them but don't get excited or spend much time trying to chase them.

Are they at the same spots as they are during the day but just higher in the water column or at differents spots?

They like roam.


4 : Please let me know if y'all got any tips, or just a general area I should pay special attention to?

Spend most of your time around rivers edge