Thanks for helping me to feel better about my own experience Martin!

I didn't fare much better myself when I crashed/bailed out at the end of the two runs I managed to make. It took me ages to get some semblance of a water start and drag myself back to the bank, and I was only 20 meter from it max. Same thing; every time I lifted the sail out of the water I got trashed. Either ripped out of my grip or thrashed so hard I could not do a thing. This was the reason I didn't attempt a third run. I genuinely feared for my safety, and I have been a waterman all my life!
In the slightly less extreme conditions in 2004 Speedweek, (35-50kts) we used the Tinnie to ferry Foxy across to the eastern shore to collect his gear after it cartwheeled across the inlet. (spectacular in the video!

) With three in the boat (3.9 Stacer with 25 Merc) we could go downwind and come back straight up wind ok but it was not comfortable. We hugged the bank crosswind. I estimate the wind was around 35-40 knots at the time. Pretty close to the limit for that boat. I think a heavy jet ski might fare a bit better but I don't know if it could operate in the winds we had 27-09-09.
There is a marine coastguard rescue boat based at Sandy now. A rigid hull semi inflatable with twin outboards. If there is ever a day like 27-09-09 again I will ask the guys to come down and see if they can operate. I recon a couple of them could be up for the challenge. Two the the crew are very experienced jet ski operators so I will ask them which they reckon might be the better option in really wild wind conditions.
I have thought about it a lot since the big day and my best suggestion is that a 'Throw Bag' would have been very useful. I used to use these a lot for rescues in my whitewater canoeing days. It is a long rope, attached at the end inside a nylon bag with a bit of weight in the bottom. It is used by holding one end of the rope and throwing the bag containing the coil, which unravels behind the bag as it flys. We usually only had about 10-15m of rope in them but in our situation, with the wind behind us, I reckon you might be able get it up to 20 meters or more quite easily. It could be used to drag a sailor and his rig back to the the bank quite well I think. We would just need to have a few of them stashed down the course.
Come to think of it, I reckon we should have one or two of these available even for normal speed days!