(My only complaint about the Taipan mast set up is that the diamonds cannot be adjusted on the water or even between races.)
Eric,
In the following post you can see a solution that will meet your wishes partly.
Turnbuckles in the diamond wires The turnbuckles can be tightend and slackened with the boat upright and the sail hoisted. The modification is actually a really simple one. Just have your diamond shorten and a threaded terminal pressed to the ends. Place a turnbuckle between the new threaded ends and a "clawed end" that you lead through the small hole in the mast base plate.
Actually AHPC is using this setup now on their Capricorn F18's ! Another thing that jumped from my Formula 16 setup to a Taipan product. The first was of course the 3-staged internal cascading downhaul system (over the old 2 staged system)
The setup really works.
You can also make the proctor arms adjustable with the mainsail up. You can by special turnbuckles with proctor to replace the current ones. These new ones can be adjusted without having to take out the pins.
Wouter