Thank you for your thoughtfulness. I will prepare for a conversation with Mark tomorrow. There still could be hopes to go out again this season. But more importantly, to get it right for the future.
One last thing, I have learned how I contributed to the problem by not having the boom at a 6 degree slope into the mast, to allow the furling to rollup properly. The photo of your magnificent boat make it appear you have a furling mast. Tell me, do you adjust your boom up to 6 degrees to furls and unfurl? Do you keep it there at 6 degrees when sailing, even when you might want to flatten the sail in strong wind?
I can't tell if the sail sliding down on the first two times out was due strictly to the halyard stretch, if the halyard swivel was set up wrong, or has some other malfunction. I have replaced all the halyards, inhaul and outhaul lines, and had the furling mechanism rebuilt at the US Spars factory. Does any thoughts come to mind of what else I need to look for?
Although I can frame this as a learning experience, I feel a great sense of disappointment in the outcome of such an exciting purchase.