I had a similar problem with a F -One kite. My kite was dangerous to fly.
Tried altering line / pig tail lengths.
Pulled the bladder out and talc it up and reinstalled.
Nothing seem to fix it.
I finally found out what was wrong with it by shear luck.
Take inside a shed where its not affected by wind.
Pump it up as per normal and watch the wing tips.
The tips should raise equally, if not there is a twist in the frame work.
Sent it way to F-one and they admitted that the frame had issues but said it was out of warranty. Thanks for nothing!!!
