Ahh, Profurl
Hello,
First, I recommend your going to the July, 2005 "Fair Leads", for a story about the consequences of a similar situation. Next, the screws are metric socket heads, theoretically available from Profurl, but since they have once again laid off all their competent people and hired a new crew, from, I believe, Vermont, in a weird cost-cutting move, it has become even more difficult than usual to get anything resembling service on Profurls. So you might want to get out your thread gauge and order up some screws. Get spares. Use blue loctite.
As for the sail, get up there on two halyards, even if it means leading the main foul for a safety. Slack the jib, unshackle the head from the swivel, and lower away the sail to someone on deck --- it'll just fall down. Then work your way down the foil, using a lanyard to keep you close enough to work. But please, read that article first.
As a side note, Profurl's come with a green loctite on the set screws; sometimes it's just right, sometimes there's too little, and sometimes way too little. Sometimes the screws back out, and sometimes they corrode in place, so you have to drill them out. Just one of the many ways this brand has of ruining your day.
Fair leads,
Brion Toss
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