Those are some nice sized fish. We have a few large mouth bass up in Michigan but small mouths are more common. I've had good luck in morning and early afternoon hours with a buzzbait. You will always catch one or two nice sized ones at dusk if you put a big night crawler on a hook. (Not to mention some panfish in the process.)
I love to fish for Northern Pike, they're abundant here and the fight like the devil. Little Cleos, Daredevils, and Mepps work best around these parts.
I, too, am a catch, photograph, and release fisherman. I'm not big on eating fish to begin with, and bass and pike are not known to be very tasty. I like Perch and Walleye but I don't often fish for them.