I move up to a 1/8 oz head when the fish are deeper and I'm guessing that a #7 weight added to a 1/16 oz jig will give close to or maybe a little over 1/8 oz. But at the same time a box of weights are cheaper to buy than new jigs

The main thing to remember like Butch said they do eat in the summer months. Try hitting the water early before the sun gets high or the last couple of hours before dark. Good luck