I'm a big believer in matching different switches to different keys based on use-case scenarios. Between my main keyboard and my macropads, I use some 15+ switch types. For example, linear for mods, medium-stiffness tactiles for alphas, extra stiff tactiles for punctuation, clicky for numlock, etc.
I've found Kaihl Silent Box Browns to be perfect for arrow keys, or any keys that I press quickly and repetively. The tactility is just strong enough to feel responsive, but weak enough that it doesn't slow you down when spamming the key. Meanwhile the cushion from the 'silent' silicon stopper is gentler on my knuckles and prevents the fatigue that could rapidly build up when spamming the key. I wouldn't use them for alphas though - they're too indistinct. Also, I refuse to use more than a small handful of Kaihl box switches, because lubing them is a nightmare! No matter how carefully I open them, that tiny green nub always seems to fall out, and takes me 10 minutes to get back into place, by which time I've probably smeared all sorts of grubby impurities from my fingers onto it.
I'm gravitating to silent switches in general though, as I realise they just feel so much better for my fingers. The Glorious Pandas I have on my alphas feel great in terms of satisfying tactility, but after a while they also kind of feel like I'm smashing my raw finger bones against a rock. I've tried o-rings but they don't seem to do much. I bought some Zilents but they feel like gravel to me (both the light and heavy variant I tried). They have this fast and wobbly pre-travel before they abruptly hit the start of the bump, so it almost feels like you're bottoming out the key twice. This gravelly quality actually makes them perfect for my key-switch fidget toy since the multiple levels of tactility give your fingers much to play with, but it feels rickety and sloppy to actually type on, to me.
I've ordered some Boba U4s, hoping that they might be a good cushioned replacement for my bone-crunching pandas. I never particularly liked the (non-cushioned) Boba U4T's that I own, but they never felt bad - just somewhat mediocre, and not quite as good as other tactiles I tried like Pandas, Koalas, or SP Stars. Hopefully the silent variant is inoffensive enough to work well for alphas. I'm not looking for perfection anymore - just something that will type well without me noticing it too much.
Can anyone recommend any other good 'silent' (MX) tactiles that would be worth trying? Not necessarily super quiet or super sexy - just something with some decent middle-of-the-road tactility with minimal weird idiosyncracies.