This time of the year they may hit spinnerbaits and crankbaits. If you can cast toward shore or find some structure underwater (you'd need a depthfinder) you can try jigs or my favorite, a t-rigged green pumpkin senko. I don't think of Mahopac having many laydowns to throw at (wood in the water).You can also try some topwater baits like Zara Spooks or another of my favorites, a Hula Popper.
I usually throw the kitchen sink until I find what might be working, then concentrate on that pattern until it dies out.
Good Luck,
Vinny