i have a 2.2 for high wind and a 3.8m for 15kts or below, love the kites so far. after about 8 hours flying i had to shorten the front lines by 35mm to keep it behaving itself due to elongation of the high load lines. to fly let the kite rock out in front under no brakes, pause and touch a bit of brake and wham it doubles the pace, hold it there and rocket along, release the brake , 50% of the tug is released, its a pussy cat again. 2.2m and 3.8 is good for everthing but below 8kts thena 6m or 8m is needed but these turn slowly compared to the 3.8 and id rather not go those days