What year 11m and 12m did you try thickair?
I have owned Rebels every year since they were released in 2007. Just recently again thought I'd try to make a 12m work. I REALLY want to like this kite, but it just feels terrible to me. I have 11m from 2010, 2012, 2013 and 2014. Recently tried 12m from 2012, 2013, 2014.
Maybe the 2015 is improved, but I'm not holding my breath.