Doug,
Yeah I agree, I keep my boats and masts inside in the winter and covered or inside in the summer. I'm toying with a covered trailer/box that I could slide the DK into and it would be protected from the UV and I could leave it more rigged for over the road.

How much wind is too much? If you are in an unprotected area I would take it down if its forecasted to be over 25-30knts. Usually a 30knot forecast is associated with some kind of weather system, so its not going to blow a steady 30, its going to be justy and probably blow 20-40, or 25-45, In a more protected area you would have to judge for yourself.

Colin,
I went with midboom sheeting, I'd rather have the sheet attached to something more solid than the tramp.

As far as whats your flyer made of? I dont know, it depends on the vintage. Could be kevlar/carbon combo, or carbon, or all kevlar. We could cut it open and see.....
You could probably email Goodall and ask. I heard they are going back to Kevlar.

Look at the inside of the hulls, black is carbon, yellow is kevlar, white is glass. The core material is hard to tell unless you can see a cross section. Smash it up and take pictures. Corecell foam is yellow, Divinycell is blue I think.

As far as if its epoxy or polyester, its hard to tell until you cut into it. Polyester has a sweeter smell than epoxy.

You should probably know what its made of so that you can be ready to fix it when (if) it breaks, its important to use the same materials so that your repair isnt harder or softer or more flexible or less flexible than the rest of the boat.

Bill