I thought at first I had an issue with the other one because the simmer sleeve was very hard to turn, but then I read in the instructions about how to loosen it up and that solved most of the problem. It doesn’t have as much clearance top to bottom as the other one so it still binds up a little bit but is definitely workable now. I did have the chance to test it out a couple times yesterday and overall I’m really happy with the product. The simmer sleeve concept is pretty neat. I lit it one time without opening the vents at all and it ran for well over an hour! Took over a half hour to boil 55 degree water, but it’s a really nice option to have for slow cooking. Thanks for the great service Aaron.