at 200 lbs i don't think you'd have much fun on a 9m kite , i'm 188 lbs and only had fun ONCE on a 9m bandit 5 in about 28 knots of breeze
I personally would go for a 10m kite at 200lbs . used to ride my10m SB upwards of 30 knots no probs
If it was primarily a kite for me I would go with 10m2 but it is mainly for my wife (see first post) so I think 9m2 is a good size. I also thought about a 8m2.