  We consider the precession of isolated neutron stars in which superfluid is
not pinned to the stellar crust perfectly. In the case of perfect pinning,
Shaham (1977) showed that there are no slowly oscillatory, long-lived modes.
When the assumption of perfect pinning is relaxed, new modes are found that can
be long-lived, but are expected to be damped rather than oscillatory, unless
the drag force on moving superfluid vortex lines has a substantial component
perpendicular to the direction of relative motion. The response of a neutron
star to external torques, such as the spindown torque, is also treated. We find
that when computing the response of a star to perturbations, assuming perfect
coupling of superfluid to normal matter from the start can miss some effects.
