This comes from the 1:1 user manual. I've got the book but i'm pretty sure you can download it from the cabrinha website.

"Make sure that the centerline adjustment strap is fully extended, so that the kite is set up at full power"


Before that line is the usual info about tying all line ends to a fixed even point. After that line it goes on to say all lines should be at an even tension when the bar is sheeted in.