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LeeD said..
I've counted among my sailing buds, one 275 lb'er, one 265 lb'er, one 245lb'er, and 3 235lb'ers.
Less downhaul, footsraps and mast base forwards, high booms, grab foot of mast and sail to lightwind waterstart.
And g/f for 8 years taught windsurfing at Poncetrain for 5 years.
All that detail is pretty good, except the mast foot forwards bit.
I'm happy to go out on a limb about that point, because a lot of people don't get this.
If you shift the mast foot forwards, the theory is that it loads the front of the board better, either with dead rig weight or else with rig power when sheeted in. It might also allow you to stand further forwards. Sounds logical, right?
But what actually happens is in shifting the mast base forwards you rake the mast back and that lowers the boom, and that in turn traps the sailor under the rig and stops him or her leaning forwards. The extra mast rake keeps people stuck in old school stance - usually with short harness lines and convinced they need a seat harness.
Far better to keep the mast foot back a bit, like centre track, but shift the front footstraps forward instead. Then the rig sets upright, the boom stays high, and you can lean forwards better to level the board. It's part of a modern upright stance where you are positioned closer to the mast and are better able to react.
Having the mast foot back also brings the rig load closer to the fin, and that gets you more torque over the fin to get more lift at low speeds. That's really part of the the same argument we use when overpowered - when we say shift the mast foot forwards when the board is tail walking. So to help early planing and for better speed on light winds, try shifting the mast foot back.
Just something to try, anyway.
I'm not a great fan of telling others how to sail their kit. It's simply worth understanding what does what, and how simple changes can alter your stance to better effect.
All too often we get dumb answers in windsurfing - like: I'm spinning out what do I do? The dumb answer is to fit a bigger fin. The correct answer is to find the source of the spinout - which is usually harness lines badly positioned or bad sailing stance due to mast foot too far forwards.