The Cessna Citation III has a funcion of the outboard spoilers that enables using them for longitudinal control if the tailplane is jammed.
If I recall correctly, when activating this function only the outer ones are deployed with the spoiler lever, creating pitch up moments by reducing lift behind the CG.
If in the bus when all the spoilers deploy after touchdown you can feel a pitch up, this pitch up would be more pronounced if only the roll spoilers of both deployed.