I recently used a floating poly leader while fishing for Bonefish in the Turks and Caicos. It was very windy and the wind was pushing around the tippet and fly and making even a halfway decent presentation very difficult. I tried the 5' saltwater floating poly leader* and I have to say I was really amazed at the way it handled the wind. It would lay out fully with a nice tight loop and made a world of difference...I had to see it to believe the difference it made in those conditions.
* I would add about 4' of 8 or 12lb tippet and was good to go.