The equal struts pressure is pointless as long as the kite design was made to work that way. On the other hand, if you try to put a one pump system on a north kite, it will not work properly because the design was made to work with different strut pressures. Therefore itÃƒÂ¢Ã¢â€šÂ¬Ã¢â€žÂ¢s all about engineering.
I am inclined to believe that well designed kites will work with one pump systems, but in terms of the Rebel are you sure it would not work with a one pump system?
I mean looking at the struts, the kite has fairly thick struts, at least compared to some other kites. (Disclaimer: I am not saying anything about the kite flying qualities as I have not ridden it).
I just doubt that anyone could possibly notice the difference from a kite that is pumped up hard...lets say 6-7psi, to a kite pumped up to 6-7 psi in the leading edge and 9 psi in the struts... or as some claim to have leading edge at one PSI, the outer struts at second PSI, and the middle strut at a thrid PSI. Really, how the hell can you notice the difference? I have tried and I sure cannot notice the difference....
A difference I did notice was on one of my Nemesis kites ( It might have been the BFK or the Waroo, I cannot remember), the outer strut didn't have a stopper, or the air it took to engage the stopper made the strut all soft...I just remember it was a pain in the ass to pump the strut up enough , and the strut was so thin and small that pumping it up hard was REALLY difficult. I think it affected the steering of the kite quite a lot.