I have in-boom furling from John Mast
with a fully battened mainsail.
- Easy for single-handed sailing
- Can reef any amount of sail
- Additional weight is kept low (unlike in-mast systems)
- The sail is always rolled away in the protective boom (my main is 8 years old and looks like new) it makes the boom rather hefty for my small boat
- I can (just) raise the main if not into wind, but usually I point up to make it easier
- It runs smoothly if I spray sailcote on the track once a year and replace the halyards and downhaul every 2-3 years (like this I can drop the sail very quickly)
- The sail shape is ideal, unlike in-mast reefing
The system was on the boat when I bought it, otherwise I would not have fitted it - it's very expensive.
All in all, it's much better than in-mast reefing and a little better than lazy jacks