  NuSTAR observed the black hole candidate XTE J1908$+$094 during its 2013 and
2019 outbursts. We use relativistic reflection to measure the spin of the black
hole through 19 different assumptions of relxill flavors and parameter
combinations. The most favored model in terms of Deviance Information Criterion
(DIC) measures the spin of the black hole to be $a = 0.55^{+0.29}_{-0.45}$, and
an inclination of $\theta=27^{+2}_{-3}$ degrees ($1\sigma$ statistical errors).
We look at the effects of coronal geometry assumptions and density of the
accretion disk on the spin prediction. All 19 tested models provide consistent
spin estimates. We discuss the evolution of spin measurement techniques using
relativistic reflection in X-ray binaries and discuss the implications of this
spin measurement in reconciling the distributions of stellar mass black hole
spin measurements made through X-ray and gravitational wave observations.
