Shroud attachment location at the chainplates
Here is a picture please forgive the roughness I am not an artist. Unlike the picture the mast is not straight but has a bend in it to the bow and more or less centered at the spreader. In other words the mast forms an arc and the curve of the arc is centered more or less at the spreader and points to the bow. The leech of the main sail has some flutter which seems to be, being caused by the bow in the mast ie not straight. As mentioned in my first post if we switch the upper and lower shroud chainplate attachment points then we can staighten the mast with the lower shrouds.
PS this boat had a jury rigged bowsprit when we bought it and also has a second jib? which we figured had to do with the PO having tried to set it up as a cutter rig.
The furler we have is a Barton and relies upon a s/s wire rope sewn into the leech of the sail. This is why we cannot reef with it.