I bet my Ullman is the same as the rest of yours also. I haven't gotten around to measuring my prebend and diamond tension but 3 inches sounds/seems right for my mast set up also.
Robi- I just decreased my rake some. now to about an inch or so ahead of the transoms. I think it sails better now... however I think I coudl very well just be confusing myself <img src="http://www.catsailor.com/forums/images/graemlins/smile.gif" alt="" />