I think that with rings the problem would go away, but if it doesn't then perhaps the joint could be stiffened. I'm assuming that it is not adjustable and I would be tempted to put in some gunk, maybe silocone rubber, which would stiffen it even if it didn't adhere.Mines like that and I've got used to it. For reefing the crinkles have webbing straps with rings to hook over the horns rather that trying to force the sail in. I also hold the horns upright with some cord and bungee strap to a cleat on the mast.
I do not like that system as the luff cannot be pulled down to the boom because it is stopped by the sail & the sail bag. If the sail was fitted to a rams horn on the gooseneck it would be considerably lower as the luff could be pulled down past the wad of sails. The sail is fixed nowhere near the black band. There will also be a tendancy for the luff to pull aft away from the mast if set up as in the picture.I took the rams' horns off and just pass a lashing through the reef cringle and round the boom.
But I have recently seen a system which I like the look of. It is on the UK Sailmaker's website. I'll see if I can find a picture.
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Proper Reefing Procedure — UK Sailmakers
On all the other boats I have sailed the rams horn is immovable but this one on our Westerly Fulmar pivots and hinges. Always ends up in the wrong position and a right pain imho. Has anyone any experience of this or how to replace it with a more convention system?View attachment 137395
As soon as you take the tension of the halyard, the horns on my boat can be rotated though normally they are lined up OK.Thats the same setup we have on our moody. You are quite correct in pointing out that once the sail is up and you are at the point of wanting to reef that they are impossible to rotate. However they are easy to rotate / orientate when the main is down so just need a quick check just before the main is hoisted that they are OK.