The one thing I need to clarify with my GK hate is that I have the smooth version, not ones with the gravé nubbins. I'm sure if you have GK Nubbins they are fine.
Currently my gravel bike is front tubeless, rear tubed. You should see the size of my saddlepack #fellas#ladies#winkwink
Just needless some tubeless Gravel Kings, for a full house of YAL disapproval
Oh, hang on