My dad fished that lake an I grew up fishing it a lot, not as much as I wanted. He is like your dad, loved the bank/shallow water. And he has caught some nice fish, but during the dog days of summer, seems to me, if I was a fish, I would be headed deeper just for the cooler temps.
Confidence is the key word you mentioned, an a quality graph. Can't amagin seeing some fish deep, and then being able to catch them. That would be awesome!
A few more months thinking about getting a nice graph, leaning toward a HDS 7 touch combo.
Would like one at console an one up front, not sure yet.
Any suggestions, Red?