  This article presents a survey of NSTX cases to study the microtearing mode
(MTM) stabilities using the newly developed global reduced model for Slab-Like
Microtearing modes (SLiM). A trained neutral network version of SLiM enables
rapid assessment (0.05s/mode) of MTM with $98\%$ accuracy providing an
opportunity for systemic equilibrium reconstructions based on the matching of
experimentally observed frequency bands and SLiM prediction across a wide range
of parameters. Such a method finds some success in the NSTX discharges, the
frequency observed in the experiment matches with what SLiM predicted. Based on
the experience with SLiM analysis, a workflow to estimate the potential MTM
frequency for a quick assessment based on experimental observation has been
established.
