I have great luck with a high quality 20'x12' silver or white tarp with reinforced grommets. Costs about $40 and lasts me 1-2 seasons in the Hawaiian sun. Use bungees or parachute cord to tie it down.
They can be cut to fit like a glove with the mast up. The rudders still need their own covers.
When you cut it, use 2 people and try to preserve all the grommets on the outer edges. You can then add grommets (with reinforced tarp material) to the trimmed inside sections that cover the bows. Yes, you can add gorilla tape to the ends and edges of your slits, as a rip-stop measure. Some folks also add small drainage slits where water tends to pond over the tramp.
If you don't sail every week, watch out for critters and stinging insects that like to nest under there.
They know a good cover when they see one.
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Prindle 18
96734
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