In-mast sail handling
Here's a thumbnail of my experience after one season with in-mast furling on my C320. Unfurling/furling: The new sail is very stiff and difficult to crank in and out at first. It gets much easier after a few times. Considering the size of the 400 vs. the 320, I hope you have an electric winch. I kept the halyard very taut and did not have to adjust it ever. After a few times, I learned to set my topping lift to one position so that the boom cleared my bimini, but did not wrinkle the sail when furling. Also, be sure to keep some tension on the furling line when unfurling, and on the outhaul when furling, so the sail does not get away from you. Finally, my sail furls in along the right hand side of the mast slot, so in stronger winds I found it easier to unfurl/furl with the boom slightly to port instead of straight back. Sail trim: I followed Don Guillette's Sail Trim guide, first concentrating on adjusting the mainsheet and traveller, and then on the adjusting draft size with the outhaul line. I haven't yet tried adjusting draft location, but I plan to work on it this season. I still have a lot to learn since I never did much sail tweaking on my previous boat. My verdict after one season - Everone in my family (wife and two teenagers) can easily handle the mainsail, and I would never go back to the hassle of taking care of a conventional mainsail. Good luck with your beautiful 400!
