We use a Breeze booster. A bit more expensive than the windscoop. I beleive we paid about 65USD. The breeze booster is self supporting by using a bowed fiberglass
batten to shape and support the scoop which looks like a hood
. No halyards or lines to be run elsewhere around the boat. It also shades the hatch
and the hatch can be opened or closed with it in place.
We have also turned it around so the back faces the wind and have opend the hatches during rainy weather
Ours worked well and did a good job of capturing the lightest winds and funneling them into the cabin. I would recommend taking a look.
Breeze Booster - Breezebooster