We have just been through this exercise while getting a new mainsail
made. We installed the Tides Marine
system and it is fantastic. The system is designed to fit your mast
slot and once ordered it took just 7 days to be individually made to suit our mast
and delivered from the US to Australia
It was a breeze to install and took all of 5 mins. Now we have a new main sail which is a dream to raise and reef down wind
. Of course ours is only a few weeks old but we have friends who installed this system before they left the US 8 years ago and have just completed their circumnavigation
and still praise the system.
It is also a lot less expensive than other systems.
Cheers Sapient Sue