Well, seems to me a lot of people are perhaps searching info about that bloody good flight at Donovaly, OK...

1. Conditions were really amazing. Nobody remembers such conditions there. Wind above 25m/s and relative sunny weather but Stefan's flight was in first round (cca 11:00). Wind was not so strong at that time (15m/s).
2. Yes, he was flying down the hill. I guess cca 150 vertical (?). How you can fly there down you can check from my flight logs from VR2002.
3. Seems to me everybody was totally surprised by this resulting time. But as you can see from Results PDF 15k there were other excellent times not only at that first round. In round 6, lets say average pilot was flying 31.16sec and no diving was neccessary (he doesn't know how to fly this style).
4. In second round organizers changed from collinear bases (A and B) to divergent to limit diving. Somebody guessed that after this change distance A and B somewhere 150m vertical down was more than 200m (at least). In round 2 flying deep down was stopped, only a few pilots were willing to fly much more distance (downthere) than on the edge for example Stefan...
5. ...his record NYX dissapeared somewhere deep down the hill. After first day not found and still missing. Round 2 for him was zero.
6. I would think twice to speak about world record while F3F is not official FAI discipline (if sometimes will be). Conditions and environment for F3F is so hard to define and so fuzzy, that I'd like to speak about this specific slope record. There are slopes and local conditions if you will fly under 50sec you are one of the best world's pilot.
7. For "5sec rule fans" just small note. This controversary rule is efective 1-st January 2004.
8. Good Luck and Good Night :)