I don't have a Chi, but I have what a local vape store sold me as an "authentic" SS King. It's my first mech mod and I love the weight, look and feel, as well as the nuts on it that keep it from rolling off the table
The thing I absolutely hate about it, and the reason why I ordered a side button clone from FT, is that I have a major problem with batteries that don't have a button positive terminal. I'll feel the damn thing firing in my pocket with the firing switch almost all of the way unscrewed and the locking nut fully locked down.. Scares the hell out of me when it happens. Earlier today I had it standing on my desk with a Sony 30a battery fully locked, button almost completely unscrewed from the firing pin to allow for more room between the battery and the top terminal. I left it there for a few minutes while someone was in the office then reached out to grab it and the fricking thing was firing the whole time with a minimal connection to the atomizer which caused the top King terminal to get hot as hell and cook the crap out of my juice and cotton but at a cool enough temperature so I didn't get the firing noise to alert me.
I don't seem to have any trouble at all with my cheap button top fire whatever batteries and it's not as much of an issue with my Panasonic which isn't button top but the positive terminal is slightly elevated; it's mostly these Sony ones with the positive terminal completely flush with the top of the battery. Anyone experience this with a King or maybe a Chi? After putting some new cotton and juice in my dripper I have it sitting again on my table but locked and mostly unscrewed. I've had the same trouble when I tried leaving it on it's side in the past too, now I try to unscrew the bottom and if it comes off I just leave the bottom cap off. My other complaint is having to adjust the top terminal for every single battery I have as they're all slightly different and if I don't, button top or not, I get either unwanted fires, crappy fires, or no fire.
Just my rant about the king, I probably should have posted this in a new thread but if the Chi and King are so close I'm curious as to whether other King/Chi users experience the same or have some tips on preventing this sort of behavior.