James,
I usually have a couple of small ball type bungies in the grommets. Could only find one so I grabbed a piece of scrap line and tied the forward one off with that. I don't leave the bungies in because they tend to fly off and disappear when luffing. I've been thinking about trying something "permanent" in the grommets but I'm lazy and don't want to risk having the Admiral put in a granny knot instead of a reef/square knot. I'll probably just buy some new ball bungies and call it good. Or maybe I'll find a couple of toggles and make custom bungies, since I need to replace the jib tie down bungies on the bow.
I had a bit of trouble with the aft reefing line creeping on me yesterday. I've got fairly slippery lines, maybe a bit larger than spec (I tend to go one size up on my lines), and the jam cleat wasn't holding it. Finally had Deborah uncleat the outhaul, which has both a jam cleat and a horn cleat, and used the little horn cleat to hold the reef in. Much better.
I cheat on the sail slugs. I've got a Catalina Direct mast gates for a catalina 22 and a ball bungie wrapped around the mast to keep the slugs from falling out. Unfortunately I bought the wrong size slugs (1/4 instead of 5/16) and the mast gate doesn't hold them in so I took one side out. It's not perfect, but there's enough slack in the bungie that when I pull the reef in, the one slug pops out of the slot, but the rest of the slugs stay put when I drop the sail for the day.
My sail ends up pretty bunched up at the tack and at the clew too. The clew is primarily because there's so many layers of cloth there for the reef point, that it doesn't roll up very well.