Its been an interesting journey through this thread with some amazing drift off topic, good to see that it's back on track. BARKINGMAD made the best observation some time back. In turbulence and limiting crosswinds its an advantage to reduce flap, where permitted, because the spanwise lift distribution moves outboard and increases roll response. The reduced drag also improves speed recovery in gusts. Try landing at flap 30 in a B777 in turbulence and a circa 40kt crosswind and you can reach full roll input at times. Flap 25 makes it much easier to manage.