Welcome aboard. We at Hobie Cat USA and the European distributor will be completely behind you on any issues related to product defects. Don't worry. Any product you receive should not have the problem. This was an issue mostly with product built in 2004 and up to early 2005.
One thing we have discovered is that the drive slipping forward has actually caused the leaks. Be sure users know to properly lock the drive in place.
Glad to hear that, I have just ordered a Sport in the UK. Its due for delivery in the next week or so.
I am looking forward to getting out sailing on her as I am also a keen Winsurfer.