Gravitational waves have been detected from the inspiral and merger of neutron star systems, and such detections provided valuable insights into fundamental physics like the nuclear equation of state. Meanwhile, searches for gravitational waves from non-merging neutron stars continue, where detections could yield far more than from mergers. Contemporaneous electromagnetic tracking of a pulsar's rotation permits the most sensitive of these searches by greatly reducing search parameter spaces. Here I discuss our campaign to track the long-term evolution of the rotation rate of fast-spinning young neutron stars. These sources are only observable in X-ray and primarily made use of NICER on the International Space Station. I describe some of the sources we monitored, a few results from our observations, including glitches and what they tell us about superfluidity, and what could be learned from gravitational wave detection. If available, results from searches of the latest gravitational wave data may also be presented on behalf of the LIGO-Virgo-KAGRA Collaboration.