It works just fine in stronger winds, but at just about all wind
strengths above 10 or so you've got to de-power the main. That generally means easing the boom out and coming up toward the wind. If the wind isn't completely spilled, you can cheat a little by biding your time and furling the main incrementally, pushing the winch
button for a few seconds whenever the wind in the main is least.
Downwind, you can sheet the boom completely in, and bring the sail down incrementally.
You'll thank your lucky stars for the electric winches. I thought I'd get by without one, but when we raised and lowered the main a few times at dockside it was clear that an electric winch was really a necessity. Particularly if you sail alone.
I've been able to handle the main well by myself in winds between 35-40 knots. Haven't encountered anything stronger than that, but I would hope that in such an eventuality I'd have already furled the main quite a bit.
So far, I've been able to raise, furl, and lower the main entirely from the cockpit
. Only reasons to go forward are:
1. to pull the ropes to slide the internal sailcover back in preparation for use, or to pull the cover back over the sail when done; and
2. to eyeball the roll to confirm it's acceptable.
Once you get the boom angle right, while furling you can control the roll with the amount of tension kept on the the halyard
One person can handle the sail, holding either the halyard
or the furling line in one hand, and pressing the electric winch button with the other.
A few times up and down and you'll get the hang of it.