I don't know if MechanicalHeadPens has been created as a community yet, maybe I'll create one unless someone has a link.
I have a Preonic at home that I swap to occasionally but every time I open a game I always reach for my staggered. The Preonic also has Kailh Box Navy Thick Clicks so it's not conducive to gaming at all in my opinion, I loved the switches when I first got them but I've grown out of them.
Layers, lots of layers. I generally only use 3 layers on a regular basis and once you get used to it it's hard to go back for general typing.