KA, I just went out to the shed and grabbed some old mags. It looks as if you got your contests mixed up, just like it turns out that I had the identity of the winner of the amateurs in the Qld Pro-Am mixed up; for years I thought Lachlan Gilbert beat me for the Overall in the "amateurs" (which included world champions who were fully sponsored, as you'll recall) but it turns out it was Grant Long, Australia's first windsurfing world champ.
Although there were a dozen World Cup pros in Queensland, Robby wasn't there; he left after the Sony. Maui did the same. Randy stayed on and it must have been him you beat. We started the marathon ahead of the pros and in the light winds it was D2s first, second and third (yours truly) home ahead of guys like Longy and Phil McGain and the rest of the World Cup pros on raceboards.
The Sony event immediately beforehand had very small waves for the wave performance. I think the Sony you remembered was the next season, when there was big swells and no wind. I'd pretty much dropped out of windsurfing and had no big wavesail, and I remember you kindly offering me your big sail before the heat, and me turning it down because (a) I didn't want to break it and (b) I had drawn Robby Naish so I had no chance anyway! I can still remember getting one good jump, crashing, and then spending the whole heat trying to waterstart while Robby was doing his thing.
Aribenasher, this pic is either of the board I have (which is what I was told when I bought it from Luke Hargreaves' sponsor and the guy who refinished it) or one of Robby's copies. I have seen a pic of Robby with two of these boards and the other looks a bit more like mine, but there's just a small difference in the paint.
It's actually 14 feet long but a tiny board compared to the modern ones and stuff like the Hedgie special. They were something like 230L or more whereas I think this one is about 190L; it's skinnier and much less deep than the later boards. It's a magic thing to handle but as Robby told me, the concave boards with their chunky rails were much quicker in the marginal planing and tight reaching of the World Cup's European rounds. As late as 1985 he and/or his dad Rick told me that this board would still be the fastest thing around on a broach reach in big waves - it's basically an enormous gun with rounded sections ahead of the mast.
The other Naish I have is similar to the centreboard area and then runs out to a square tail with twin fins. I lent it to my bro and it came back covered with peeling white paint so it needs a redo. Bruce Wylie used it in the '84 Rip Curl and said in the marginal planing stuff it was as fast as the early concave raceboards that Robby was using (with the board I now have as a spare and high-wind board) because it had so much planing surface. The bizarre thing is that it gybes beautifully, which you wouldn't expect from a square tailed board 13' long.
I don't do raceboards any more, but if anyone ever said I could only ever sail one thing for the rest of my life, it would be a raceboard. They've got the most incredible range of fun; you can cruise around in glassy calms, through them through one handed duck gybes, put on a backpack and go away for the weekend, have some great racing, teach friends, and go for epic long offshore reaches knowing that you can get home safely and quickly no matter what. And the complexity of handling something with mast track, centreboard, various strap positions and sail controls across the full range of wind strengths and angles is fascinating.