Yeah... just removing the fish (all pale looking) and jazzing up that squiggly design would have looked killer. Yes, I still love my 'roos.
Michael, I know enough to know that I can't (confidently) recommend outside of my weight class, but I will give my impression. I believe Eddie probably weighs what you weigh and his insights are more valuable. I weigh 160.
I start having quite a bit of fun on the 13m in solid 15knots. I am talking I can do anything I want. Unhook with good power, jump pretty high... etc. On my 9m, 17/18 knots is when the fun starts for unhooking and around solid 20/22 knots.. I can jump pretty high and am pretty much litt. Solid 25 knots and I start going for megaloops. The 9m 'roo is a sick megalooper.

I think those wind speeds indicate one thing, primarily.... it's hard to have a whole lot of fun on a kite (talking adrenaline rush) in less than 15 knots... if you are unhooking and need "pop power". I like to try to do unhooked stuff these days (if on a twin tip). If I had the 15m, I could unhook in 13knots, but it would be slo-mo, not so much pop... so what's the point(?) is kinda my take.
I only do 4 or so unhooked tricks.. but I like to come off the water powered when I do.

I also use the 13m as my light wind kite, and can easily ride it on a surfboard in 10 knots. I happen to have quite a bit of fun just cruising around and riding. But it's a totally different kind of fun than unhooking and stuff.
My take (at my weight) is that a bigger kite is a waste of time and money for light wind riding. You are going to be just sight seeing in less than 13 or so, not doing many tricks... so why do it under a circus tent? If it picks up.. you are on a circus tent then.

(slightly off tangent... )
Both waroos have pretty good low end for their size, imo. So a bigger 'roo may not be necessary for 15 knots or so, is my point. Again, I don't know what it's like to weigh a certain amount. I just know what the deal is at my size.
I would imagine if you aren't interested in sub 13 knots... that the 13 and 9m combo would be a good call. I view the 9m as the cherry... and would want that kite in the quiver. Hope this helps. I think a lot of your decision may be based on your riding style. If you ride hooked in, like power (maybe being overpowered), I think I would recommend the 15/11 combo for bigger guys who ride in 10 to 30. If you like more technical or unhooked stuff (where being totally overpowered can suck) I think I would say 13/9, almost regardless of weight (unless a flyweight.. then just the 9m).
Hope that makes any sense at all.
Take that info together with Eddie's.. and maybe... Jonathan and Codder can hop on too.
Can someone give insight into the one-pump deal? Is Best still going to offer a non-one pump choice? I am a huge believer that being able to inflate each strut and then LE is the only way to go (for me). One pump makes no sense in terms of kite performance.. it just lessens it, imo. Also, it's a major pain in the ass when LE has leak on many brands in terms of fix. I view it as not much more than a marketing fad that unfortunately took hold among kiters.
It will be too bad if Best doesn't offer a non one-pump solution.
I would be willing to pay MORE to not have one-pump.
For me all one pump does is insure my struts don't inflate rock hard.
Ozone seemed keenly aware of this years ago.. and even they switched over.
Ahh... the power of the (ignorant) consumer... gotta love it

(End rant).