with the mast in the over rotated position and the halyard pulley swings to the side of the mast all the driving forward force is going onto the weakest axis
Didn't Aboopoo say he was using a tang/hound and not a block on a bale? If so, wouldn't that edge-pull tend to pull the mast around to point at the center of spin tension and rotate the stronger long axis toward that pull?
What angle do you think is the strongest force of the spin, i.e., at what angle off fore-and -aft? 30? 45? 60? 90? Is that where you want to point your mast rotation? Assume spin tack 12 feet forward on the pole, clew sheeted to the sidestay, and sailing deep as possible. I realize that leach tension will also be pulling the mast fore and aft.
Which is stronger, the long chord of the mast (fore & aft) or the short chord which is supported by the diamonds (except for the length above the diamonds to the spin upper block)?
Has anyone seen a mast break due to NOT rotating the mast under spin?
