Okay, so I just checked the TTC Bluish White thread:
The key characteristics of the TTC Bluish White are
- Muted sound on downstroke [bottom-out]
- Different subjective feel between up/downstroke
Part 2 is a bit murky. There are some factors in the switch design that make the upstroke feel different from what you’d expect. The spring is unusual, I know TTC has been experimenting with ‘double’ and ‘triple-acuation’ springs, so that may be part of it.
Basically, the switch is loud and clacky on the upstroke, so it seems like a kind of different switch when going that direction.
People find them interesting and satisfying to type on, so they could make a good alternative to U4T/HP/Zealios. Apparently, there is a variant now where it’s also muted on the upstroke.
[I remember typing on samples, they are punchy and satisfying, but more tactile than Ergo Clear.]