On the Premier model and I guess? also on the Gibian model I found these three helpful hints:
1. Use a swivel at the bridle point connection as this kite likes to turn at the bridle point connection.
2. Keep the top and lower spreader bow heights - EQUIVALNET. Not 7" top/4" bottom as per directions. More stable IMO.
3. Tension the central spine - see this thread.
4. I use 50# test line. It likes 4-10 mph.
When possible buy the ORIGINAL