The best backcountry fishing that time of year, factoring in the cold fronts will probably be at Ding Darling National Wildlife Refugee on Sanibel. You can rent a kayak to tour the sound. Might be to far to paddle over to Pine Islands' flats & creeks & the drive would be over an hour but usually worth it. An #8 weight will get those size #6 -#1/0 flies to the fish even with the winds. Check the previous Florida Fish-Ins info for the little details.