Yeh man. Let me put it this way, when I got the zephyr my bro was out a hell of a lot of time on his 11m edge on a 136 by 41, and I'd either be on my 135 by 41 and even my light wind TT 145 by 44.
Sure I was a little more powered and if it really dropped to say 11/12 then he'd struggle and I'd be okay on the light wind TT and the zephyr. And he weighed more than me about 5kg or more back then.
But I was still naffing about a bit. Then again I hold the same kites as guys I ride with who are 85kg and I like to be powered (me at 75).
But my bro has a zephyr now and we charge it when others are putting up 12s and are nicely powered. It has a remarkable top end and yeh it's a lot more stable and forgiving when trying stupid stuff, especially in the lighter winds.
Great wing hey...if only they would make smaller versions...oops I did it again...

The 13m edge is a remarkable kite as well though.
Do what I did, just picked up a dyno 2011 16m...now I will be lit of my ass in 15....bahahahahahah, not looking forward to the pumping routine though!!