The location of the rcs is fine, but they don't fire quite right. For instance, if I try to pitch forward they fire as if I am trying to translate forward. The service module still pitches forward because the rcs is above the center of mass, but you move laterally quite a bit. Ideally one thruster would fire up, and the opposite thruster would fire down. Right now they both fire forward. I didn't really understand what was going wrong until I looked at it in the VAB using the rcs build aid mod. I think that if the rcs was it's own separate part that we could place onto the service module the game would automatically fire the rcs correctly.