Funny. I've tried the 10.5 and 13.5.
The 10.5 is a good bit faster, but just as stable.
Also, it generates more power even though it has a shorter leading edge this year. I think this is because it flies faster. I definitely felt like I was going faster on the water. Jumping is good, unhooked is great, kiteloops are punchy and predictable.
The 13.5 is right on the cusp of a big kite in terms of feel. It still gets the small guys upwind and has tons of power. I have an instructor down here (so cal) who wont let go of my demo
It's fast for a big kite but it's still a big kite.
Haven't tried my 12 meter, but from what I hear it's like the 10.5- faster and punchier.
Bar pressure is lighter than last year, but bar feel is still excellent and the kites have more of an axial turn than a pivot around the center kind of turn. This is what lends them punch in a k/l.
Also, the people who try them are hanging on to them, which is a great sign.