Yeah I do close when not in use. I actually did just rebuild it honestly with like a tiny amount of whispy cotton. I was afraid it wouldn't be enough to stop the liquid from just flooding in but it seems to be vaping ok. I actually JUST had the mouthpiece open 3 full turns (1080 degrees!) and had a dry hit, so I am a bit confused now haha. I feel like the more I think about it and try to get the perfect setup the worse it can be. It was going fine when I first got it for a while, so it's gotta be something I am doing. I am also curious as to how far you cut your cotton for the MrKrinkle method, Do any cotton bits go down the channels? Because I've been having the tail end of the cotton go down the channels just a tiny bit, probably ~3-5mm, as I've been trying to use less cotton (my thoughts were that the cotton won't be enough to block the juice from flowing into the metal cup, but I should probably stop doing that, too... cotton does swell up a lot when it's saturated, so I'm sure it's enough to stop floods on it's own, cut right at the channels).
Another issue with me, not sure if it is for you guys, but being able to pull a consistent piece of cotton from the cotton ball (or whatever you use) each time... And I don't know how much I should roll it tighter (usually I just roll it just barely enough to give it a wick shape... but it's more like gently squeezing it not rolling it) - I do think it might have something to do with when I put the cotton wick in and pull it through the coil the opposite end puffs up leaving an uneven wick, with liquid most likely pooling in that big puffy reservoir.
I might just need to see a good pic, looking forward to yours RiverNut! Thank you!