I use them, have two. As for the ring, I drilled 8- 3/16'" holes about one inch from the bottom of the lid, then took tin snips to cut a narrow "^". Bought one of those lid remove tools from Menards for about $5. I keep the lid rig off so sanitizing is easier, then push it on before adding wort. After fermenting and transferring, pop the lid and ring off and pour out the the yeast. For lifting, wife made lifting supports from 2" webbing. Have a cheep Harbor Freight hoist to lift the container into and out of my chest freezer fermenting chamber. For cleaning, I do a rinse of the remaining yeast and junk, fill the container up with hot water and add some PBW. Let that sit for a day, rinse and let dry.