I have been using KTT Mallos a little bit, on-and-off, since May.
Have had the chance to compare them with other light tactiles on the same type of keyboard [MK870].
I have to say, after a few months of infrequent usage, testing really, the KTT Mallos are a very decent switch, let down only by their noisy leaves.
They are tight, low-wobble, and sturdy. They let RGB light through without too much distortion. They are very smooth, even without lube. Mine are lubed only in the leaf area.
They’ve been beside SP Star switches, like Meteor Orange 1.5 and lubed Ducks. The tactility of Mallo is the lowest, it’s almost a linear. I’m somewhat uncertain on them, when typing. But they’re great for gaming, at least, when I tried some classic FPS.
Like the SP Star switches, Mallo actuates a little lower on the stem than I’d like. It’s Gateron-esque. I would prefer a Cherry-positioned bump, or even something a little higher.
The Meteor Orange 1.5 is crisper than Mallo, and I think Duck has a slightly larger bump. Both of these wobble more than Mallo.
KTT doesn’t have to change much, if they want to make an improved Mallo. Just address sound somehow, either with better/more factory lube (+ unlubed version), better materials, and/or especially a better leaf. The bump could stand to be a little larger, maybe on the order of the SP Star Duck, but that’s just preference.
I will be gifting my Mallos to a relative, as they will prefer a lighter, softer keyboard. They are going on a custom-themed MK870. Even with only the spring + leaf-area lubed, they sound pretty decent with thick OEM-profile PBT keycaps.
[guess I should have taken a photo of the bare board, with all the Mallos on it!]