Following a fin breakage out at sea this afternoon, thanks very much to the sailor on the blue Starboard who stopped near me, then sailed off to try and get a replacement fin for my board (I failed to find you on the beach later to say "thank you", so I hope you see this).
Thanks also to the Elwood life saver rubber-ducky crew who came up and towed me into shore (in rising wind and sea conditions, with great drag caused by the sail).
For anyone else who might have to be towed in the future, it’s best to have the tow line placed around the UJ, then guide the board and sail as best you can.
Why didn't you just hold the sail near the top and let the board plane along beside the boat? Much easier....
Good on the clubbies for getting you in. 
You are lucky that jaws did not turn up as well
. The mr. altona jaws shark.
May be he has left the bay, I hope he has and was just visiting on holidays.
Think you owe that blue starboard dude a beer
Self Rescue for snapped/lost fin
Take off your harness and strap it upside down through your rear foot strap - Harness bar and hook pointing down away from the bottom of the board.
The resulting drag will enable you to 'sail' back into shoreline.
You wont be able to plane... you wont be able to use your harness on the trip in... you will loose a lot of ground... but you will be able to get back to the beach/shore 'Self Rescue Style'.
Kev
PS - Definite beer for the Blue Star man
Thanks for the posters' comments, it might help others.
Stribo, the wind had come up from 11-12 kts to about 20 kts, with a consequent increase in wave size. The wave period in the Bay is typically 5 seconds, so all in all, it was unmanageable. I was being towed behind the RD: we had tried towing alongside and found that the RD was being bashed against the board/sail.
Wind warrior, tried it and failed. The board would round up viciously as I tried to water start (no/little force to hold aginst the power of the sail), so just getting on was difficult. Under way, I had to have my front foot near/in front of the UJ to try and keep the board steering and prevent rounding up. Was on a rocky lee shore and was only successful in sailing parallel to the beach, away from the rocks towards sand, without making it towards shore.
The last time this happened to me I was using a seat harness, which provided good steerage. This time, I was using a waist harness, which did not provide as good a steering effect, possibly due to its shorter overall length, compared to the seat harness.
For info of all, Robin (the lady skipper of the rubber-ducky), later told me that they are trained to tow boats only. I later went to the club and thanked the rubber-ducky crew and suggested to the Patrol Captain that they keep the UJ-tow point in mind, if the rig is still joined to the board. For longer distances, a sail de-rig followed by a hand-tow might be the best (I was only about 500m off-shore).
Also, there were 3 people in the rubber-ducky, so putting the board and sail on the thwarts wasn't possible (the board is 80cm wide).
Nebbian: thanks for removing the second submittal of my same post (a case of too many thumbs when hitting the "POST" key).
I too lost a fin a couple kays out a few weeks ago, used the harness through the footstrap trick and got me home eventually (took 2 and a half hours)I had and always use a seat harness and can see that maybe a waist harness would not work, bloody hard to hold up a 5.8 race sail with no harness and board sliding around, i ended up lowering the boom right down so it would rest on the back of the board and body dragged most of the way in. no rescue boats around here to help. I have some pretty cool looking gps tracks though. went straight to the pub after and stayed there.
