I bought these together with the Drop Phantom stabilizers, they are rattly on their own but experimenting with mixing and matching they worked well without lubrication using their housing, with the stems and bar from the Drop Phantom. The sound good with lubrication on most of the keys I use, an edge key does still sound hollow.
I purchased these stabz cause the ones on my build felt cheap and really wobbly. This was a bit better but still a tad bit shaky. Had to do some mods to make it feel more sturdy. Would buy again for future builds.
Slight rattle but with enough lube and mods it's fairly good. I would probably go for more expensive screw in stabs in the future but these are good for what they are.
Neekolas714Update: I was able to remove about 90% of the rattle with a lube of the post and chamber. Seems better, but still a bit of a rattle on the spacebar that I just can't get rid of.