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edhead said...
The theory being that it stopped the kite 'flipping though' the lines.
Theory. Nice theory...

As you said if it was any good then they would still be around, as no matter what kite tech you have (hybrid, C, bow) kites rolling through the lines always has the potential for dramas.
Steve's on the money for the pros and cons, and just because you had that line on didn't mean you stopped the flipping and/or a misbehaving kite after a flip