The gm/ID-based design of analog ICs introduced by Silveira, et al. employs a transistor sizing methodology using SPICE-generated lookup tables. In the design of ultra-low-power amplifiers, the iconic plots of gm/ID vs VOV suggest that some devices should be operated deep in weak inversion where gm/ID is near maximum. Performance parameters such as gain, bandwidth, thermal noise, power dissipation, etc., benefit from this choice. However, in applications where small-signal settling time is critical, the unity-gain phase margin is a parameter of paramount importance. PM (i.e., small-signal settling time) vs. VOV (i.e., strong, moderate or weak inversion) design considerations are presented.