I haven’t tried lubing these yet but otherwise can corroborate all of the above. 
Great concise review.
TTC has been killing it in that regard, I think. These in particular seem like a showcase of their design considerations, but their recent linears and tactiles in general have been instant favorites for me because of their feel.
Besides the nice and smooth polycarb topped ones, a good half of them are “scratchy” - or “textured”, depending on how it strikes you - but in context of the stability and consistency I don’t even mind. I find that Nylon “snap” bottom-out sound extra tasty.
Edit: I almost forgot seeing this similar switch the other day.