Which size waroo?

Hey waroo riders/ex-riders... I'm thinking about buying a waroo (because of price) to fill the average conditions around here. I am thinking either a 12m or a 14m. I am *guessing* the top end of the 14m is close to 30mph, so that really sounds like the kite for me.

I want something to cover the range of my 21m, 18m, 15m, and possibly 13m. As far as I can tell the 14m waroo might do that, but then again so might the 12m?

Think so?