I think you'd have better luck by simply doing a google search for mainsail reefing systems. You can further refine that by adding "single line vs double line reefing systems" .
On a boat like the Flicka, which is very stable with its full keel, and flat decks, and small size over all, you'd be very secure for the short trip to the mast. I have a clew line and floating tack hook...the clew line runs forward along the boom to a captive vee cleat a foot or so back from the gooseneck. The tack ring is on a strap that runs through the reef cringle... allowing the ring to span the bunched up sail and slip around the rams horn for the forward corner of the reef. Because it's only 27 ft, my boat's mainsail doesn't need a winch to tighten down the reef. What you do is "sweat" the clew line, using the leverage provided by the line's long run along the boom. So,,,, to reef I make sure the vang is off, ease the mainsheet and bear off to a close reach, before leaving the cockpit I ease the halyard to a mark that tells me when the sail is in position. With the tiller pilot holding course, I walk to the mast, harnessed and tethered of course, hook the floating tack over the horn, and sweat the clew line down so the sail is secure. Back to the cockpit to tweak the trim on the halyard and I'm good. You can increase snugness on the clew line by pulling down the boom with the mainsheet and vang. Takes less than thirty seconds. You do not need to tie in any gaskets unless you're planning to stay reefed for a long time. If you do, make sure you use colored rope or webbing for the ties.... that's to remind you to remove them before you shake out the reef.... lest you do some damage to your mainsail.
One of the best reasons to rig this way, is to remove all the clutter in the cockpit and cabin top. I once saw an article where the guy had a Flicka sized boat that he sailed on one of the great lakes all the time.... He claimed that he reefed a couple times per outing consistently.... so he set up two line systems for 1st and 2nd reefs.... using clutches no less.... So that's FOUR extra lines in the small boat's cockpit, plus halyards, furler lines, vang, cunningham etc. He had big ass labels on every clutch.... it was ridiculous... looked like an old railroad switching tower....big levers and piles of rope all over the place. All that to save setting the tiller pilot and taking three steps to the mast. On larger boats it might not look so bad.... but on this little 21 footer it was absurd.
Anyway, do the search and you'll get lots of pics and links to related articles. It's good to get opposing viewpoints on this subject, because there a certainly different solutions to the problem. Good Luck, Have Fun