Double Haul for Distance
If you want to get max distance from your fly cast, being able to double haul is essential. The first time I ever fished the flats, that was the first thing my guide asked, "Can you double haul?" - then he asked to see it! It makes a big difference for distance and also for extra strength in the wind. And how many times have you been on the flats with no wind? Exactly.
So work on your double haul and you will be ready for almost anything!