Yes indeed thank you for that FLS, however I believe Morf is referring to the instantaneous turn that happens between flap settings.
As we can see in that 38 chart, at 3 notches its best sustained rate is 21 dps at 162ish mph. But if we were to start at its best sustained rate with no flaps at 190 mph and drop those three notches (read: add lift) from there, the turn rate will go above 21dps until the drag and thrust equalize again at 162 mph. If we were to drop the rest of the flaps from there, the dps would breifly increase again until the extra drag causes us to lose enough speed to cancel the extra lift created.