I have sailed on boats with the Tides Marine sail track and it works VERY well. It costs about $30 per foot of mast
track for the kit, including the slides but not counting the cost to have a sailmaker
attach the new slides to your sail.
You can install the track from the deck
without removing the mast. Their full batten cars are the best part since they "swivel" to prevent binding...
I am looking at reefing options for my boat
since I single
hand, and with my age the hopping back & forth between the cabin
rooftop and cockpit
kills my knees.
I plan to install two separate lines for each reef: one for the clew, one for the tack and bringing the lines all back to the cockpit
The "tack line" would also perform the function of a "downhaul".
Christian Williams who at 70+ sails single
hand between Los Angeles and Hawaii
has a similar setup two line reef system on his 38 ft Erickson: