  We present additional analysis of the classification system presented in
Allers & Liu (2013). We refer the reader to Allers & Liu (2013) for a detailed
discussion of our near-IR spectral type and gravity classification system.
Here, we address questions and comments from participants of the Brown Dwarfs
Come of Age meeting. In particular, we examine the effects of binarity and
metallicity on our classification system. We also present our classification of
Pleiades brown dwarfs using published spectra. Lastly, we determine SpTs and
calculate gravity-sensitive indices for the BT-Settl atmospheric models and
compare them to observations.
