These have super tight tolerances. No rattle at all when lubed. However... Because those tolerances are so tight, if there's any manufacturing defects, a microscopically bent wire, a barely misformed stem or housing, the entire stabilizer will fail. They'll get stuck, not return, or not even assemble properly. So, these are great; provided yours are absolutely perfect.
Hit or miss it would seem
I've got to agree with the reviewer Jenneke here. The stabs are great in terms of having zero rattle (just 205g0 and you're good to go), but they seem hit or miss. Maybe I just got a bad batch, but I ran into issues with keycaps not returning using these. Everything worked fine when testing on just the PCB, but as soon as I added a plate the stabs would return slowly or not at all, and I tried it with different switches/keycaps to be sure. Just extremely tight tolerances all around. I used these on a KBD67 Lite for reference. If you have issues with these as well I would definitely recommend TX stabs. Those are wonderful if you're okay with clip-ins and I've personally not experienced such issues with them.
Endgame Stabs, period!
These stabs provide super tight housing, giving it completely no rattle whatsoever. Wires are balanced right off the box, no rebalance required. Just add lube on the housing and on the wires and you are good to go!
If you have a 1.6mm pcb without flex cuts around the stab holes, these are the ones. I put on some xht-bdz and there is absolutely no unwanted sound coming from the stabs. This should be the standard of stabs in 2022, TX are nowhere near.
Staebies v2.1 Stabilizers
Really great for hassle free builds. Tight tolerances so no modding needed, just some lube on wires and I was good to go. Would recommend these over Durock stabilizers