I started a new RP-1 career with this installed and I for the life of me can not get the vehicles to launch from LC39A or B, they always are defaulting to the KSC launchpad even when I turn the KSC pad off in Kerbal Konstructs. I'm running just the recommended RSS/RP-1 mods with the compatible RSS and RSS Textures as indicated.
If anyone has better luck with RP-1 please feel free to share, I've investigated and tweaked as much as I can.