Rolf,

Agreed there would be zero compression out of the mast......most likely it would come from bow tips flexing or stretch in the halyard. There has been endless discussion on the effect of the spin luff issues. I know you know what is right or wrong.

With regard to the hauling of boats up the boat ramps.....unless the rollers are identical, then comarisons are just hot air. <img src="http://www.catsailor.com/forums/images/graemlins/shocked.gif" alt="" />

Marcus