  This paper reports a start-to-end study of suppression of stored beam
oscillation at PLS-II. We report that the fast counter-kicker implemented in
PLS-II suppressed vertical oscillation of the stored beam. During top-up
injection in the magnetic spectroscopy beamline of PLS-II, the stored beam
oscillation was suppressed by a factor of nine, and flux was improved by a
factor of three.
