Hopefully this isn't a hijack. I did the front brakes on my Suburban last weekend due to a pulling left issue, and then hauled the boat yesterday. It's taking them a while to break in or something. My wife didn't like them when she had it out before that, and I don't either yet, especially with the boat. Used Napa premium pads too (ceramic).
It's almost like a little air in the lines, but I didn't open the system, just pushed the caliper pistons back. Master cylinder had plenty of fluid the whole time too.