In June and July big Culprit worms dominate.  The 10 and 12 inchers are my first choice for catching big bass in their summer hangouts.  In most lakes offshore drops anywhere from 5 to 20ft is where most of the bass spend their summers.  You can certainly still catch them beating the banks, but offshore is where most of the bass are.  Search places where creek channels drain into the main river channel, bends in the channels, shell beds, road beds, bridges, points and other major structures to locate big schools of bass.  Current is often the key on these structures to make the fish active.  Keep in mind if there is no current for long periods of time, a thermocline may develop and you want to fish above it.

Follow up:

Fish the big worms on 1/2 to 1oz Texas rigs with 15lb fluorocarbon for better feel.  I like dark colors for the deep water.  Use long heavy action rods to get good hook sets in the deep water.  You can also search these deep water fish with heavy football head jigs with the Culprit Tailgate Special as a trailer.  The wild action and vibration of this trailer can trigger inactive bass to bite.

If you still prefer to fish shallow head to the dirtiest water possible preferably with current and flip the new Creature Craw  and Fat Max worms into heavy cover.  You won't catch hundred a day like you can offshore, but you can have solid days and have lots of fun.  The best places to do this are the backs of major creeks and up the main river of most reservoirs.

If you live in Florida or in really weedy lakes anywhere, flipping mats with the Creature Craw is deadly in the summer.  Again it's not a numbers bait but you can catch some really big ones under the mats.  Use 7-8 ft flipping rods and heavy braid or 20-25lb fluorocarbon to muscle the big ones out.  1oz plus weights are necessary to penetrate the heavy vegetation.