There is a critical balance beween the leading and trailing outer keel tension needed for the kite to retain its plan shape in gust. Carefully a cm at a time I tighten the rear shrouds to equalise the stiffness from front to back, many launches later the kite becomes stable but still handles 12-15mph gust badly:
It seems to bounce around on the wind like a pea on a drum skin- I want it to move with the wind not against it!
Some further experiment is needed, It may be that my instinct to tighten the rear shrouds was wrong and I should slacken them to reduce the narrowing of the leading edge. With plenty of pull in 12mph the kite still has some dangerous tendencies that I’d like to cure before it’s trusted with a camera.
I’m begining to think it’s a Bft 2 kite after all!