This time of years is the best time for larger mackinaw's. Fishing from the Camp Richardson area to Emerald Bay with number 11 to a magnum Rapala in  20 to 60 feet of water around the rocky areas. The Cave Rock to Logan Shoals has also been a productive area. If you want quantity of mac's I would fish the Tahoe shelf area off of Tahoe City to Carnelian Bay. Best results have been with a dodger or a flasher with a 12 to 16 inch leader and a live minnow. Start in the 150 foot depth range and move out to the 220 feet as the sun rises.