Hey guys. I am the one who sailed to AU from CA with the 40.5. It was a great boat to do the trip. Fast and comfortable. The addition of a staysail would have come in handy only one time. When we got hit by 50K winds between New Caledonia and Brisbane.
We did get and additional sail though, a cruising code zero which clipped to the end of our anchor roller with and endless line furler. Unlike a potential staysail, we uses this a LOT and we did not need extra fuel as we sailed in very light wind. And because it was such a big sail it meant when new had the genoa made, it could be much smaller then 133% as it id not need to function as a light air sail.
The code zero needs a very tight halyard, unlike a regular spinnaker. This put a lot of stress on the long and cantilevered roller. It was flexing a lot and I had to make my own bobstay out of kevlar rope halfway to the Marquesas. Anchoring loads put a large downward strain on the long roller too. The best option for a long distance cruiser would be to make solid bobstay out of say thick wall 1" stainless pipe that bolts to the bottom of the roller at attaches to the small bail on the front of the chainplate. This will stop flexing in both directions.
Anyway, nothing would have stopped the whole lot getting ripped off why a whale!
Here is our blog if you want to read it. With pics of the damage and code zero, which was also destroyed by the whale. That sail was awesome!
http://knottyladypacific.blogspot.com.au/
PS, Rick, we miss you and Marlin and congrats on the racing results!