I just got my first mech keyboard around a week ago and everything is great, except the blank top keycaps. I'm not sure what it is, but after 10-15 min of playing an fps game where my fingers are constantly pressed on the WASD keys, they feel like they become coated with a thin film of gunk/oil and it's a really awkward feeling that bothers me. I'm sure this is some type of oil from my fingers, but I'm coming from a scissor switch apple keyboard and never had this issue with that keyboard.
I've read that the Filcos use cheap keycaps, so could this be the case? Would a replacement set of some quality caps fix the issue?