I believe you are better than anybody else to know what the requirements to a Surf Kite are.
IMO I tested Best Cabo, Airush Wave and Cabrinha Drifter and found out the Drifter the one that is better than the other two.
Best Cabo is the second and has the best color! Airush wave seems a do-it-all entry kite like Cabrinha Vector. Also, I believe it is too powerful to be a wave kite.
Again as a wave kite it has to drift, kiteloop with ease to recover power and it shall have restricted wind window. A plus, a stronger structure to colapse under some waves and still in one piece.
Colors? I like black kites, they are easier to repair and stay clean.
Hope being of some help.
and thank you for posting some of your ideas concerning the SURF kite plus the colors.
Personally a wave kite needs to be flashy in case you get in trouble while you are out in the waves so people can see you. During Hurricanes or big swells, I always make sure to use the brightest kite out there in case something happens. So the SURF kite will be very bright and flashy.
Pink might be a good way to go
Now concerning the kites you mentioned above such as the Cabrinha, Airush, Best....they are very good kites but I want something just for waves. I have tested these kites plus other ones and they are all good kites but again I know I can do better especially with all the help I am getting from you guys. So thank you for all the help.