Err, not quite the answer you wanted but my storm 4.75 (2007 model) rigs on a 430 and I reckon there's quite a bit of strap to spare.
Thanks anyway.
I'm hoping to get a sail my wife can learn on, and that I can use on windy days - not having to buy a new mast would be nice....
Slamdunk.
The 4.5 Storm will fit on the 430 no problem, though the optimum mast is either 370 or 4.00. It'll be a little more rigid on the stiffer mast but still will behave pretty well, as most of theTushinghams tend not to be as mast critical as some of the other brands.
Jez www.2ndwind.com.au
Thanks Jez,
That's what I wanted to hear - I can ge the sail now and a more suited mast when I save some more money.