Check the length of the B-safe span line from tip to tip along the B cascade. I as well as others have had to lengthen this line from what came stock. There is a line plan with measurements available from the flysurfer website.
Mine was so short it visibly kinked the wingtips a bit (worse on one side) and the kite did not produce power the way I expected. I used some of the extra line supplied with the kite in the repair kit to fashion a longer span line and with a bit of higher wind use, everything stretched out properly and it works perfectly now.
Good luck.