>>Okay, so run down the mast rotation on different points of sail,
"Loose under spinnaker as much rotation as you can get" says one portion of the F16 sailors
"Rotation pointing to the forward point of the daggerboard well" says Daniel
I think the truth is between these two. In winds not to strong you can follow Daniel advice. In strong winds this made my mast look really funny so I loosend up on it and that brought the mast bend back into line.
Apart from that there is not good rule of thumb apart from I would describe as :
"less rotation when the gusts are hitting hard and making you trip or when you think more speed is possible when going upwind and the rotation is still pointing near to the daggerbaord well"
Actually you need to feel what the boat does when adjusting the rotation. If this adjustment is needed then you feel it.
That is how I am trimming my rig now. And I'm really learning by listening to what she says.
>>then--I may be running more rotation and not getting enough mast bend above the hound. I get overpowered in gusts easier than I'd like.
This requires either more downhaul or less rotation. Both will make the top bend off quicker and bend off more.
>>How about diamond tension?
I adjusted this just by look of my mainsail. I aimed for a mild continious draft in my mainsail only decreasing in the very top by use of stiffer battens. I have my spreader rake at 30 mm but I'm using longer spreader then you all so my settings aren't of any value to you. I'm also thinking about raking my spreaders more back as they just interfere with the leech of my jib. I'm currently not running alot of diamond tension I think this is the result of my longer spreaders and the fact that may mainsail is cut a little differently then you Goodall mainsail. I think I can run less prebend because of my larger square top as well. Oh wait , you are running with an Ashby F16 sail are you not ? In that case I would do as I did a few days ago. Set the boat up and look at the mainsail and adjust the tension of the diamonds so that the draft in your sail is mild and constant over the best part of the sail when some mainsheet and downhaul is applied. With my mainsail the wrong trim was quite visible in the middle of my sail. The bottom and top looked okay but the middle didn't. Bottom is largely affected by the outhaul. Top by the battens and downhaul. Middle is largely affected by the prebend and their for spreader rake and diamond tension
>>Also, I'd be interested in the cascading downhaul--how is it different than what's in my wingmast now?
Take a look in your inbox.
If you want a detailed explanation please take the effort to phone me.
Wouter