If you should be looking for a new spot, you will be most wellcome on Lake Balaton. I know, it's probably a little more far away. If you should decide to come here, here are the places to go:
If wind comes from the south or south-east, you should go to Kenese on the north shore. However, these winds are mostly very gusty and not stable.
If winds blow from the SW,W,NW,N, you should come to Szabadi-furdo, Sosto. These are 2-3 km to the east of Siofok. These are the only hungarian kite-beaches. It is also a little bit dangerous due to trees and rocks on the shore, but local kiters will be very helpful.