Comparison of best-fitting single- (solid) and double-Schechter (dashed) models over the observed SMFs (points with error bars). The curves show the Eddington-convolved (observed-space) model predictions from the Obreschkow et al. (2018) fitting framework. The vertical dotted lines mark the stellar-mass completeness limits at z = 0.2 (from Fig. 6); bins below these limits are shown as gray open symbols, and the model curves are faded below the completeness limit. For the total and SF-SMFs the double-Schechter curve corresponds to the standard (free) five-parameter optimization, while for the Q-SMF the double-Schechter curve corresponds to the stabilized two-stage (tight) procedure (Stage B) described in the text.