Ok, I am not sure if you understand how powerful these power kites are. Let me give you another hint. I am 6'6" tall and I weigh about 235 - 245lbs. Safe to say I am not a small person... Well maybe in WWF standards, but for regular folks I am a BIG person. Take a look at what a 6.5m kite can do with moderate 20km/h winds. My Nike Shox shoes have never had such a hard workout!