Mean T_cond slope (﹩\frac{\partial [{\rm{X}}/{\rm{Fe}}]}{\partial {T}_{{\rm{cond}}}}﹩) as a function of binned absolute vertical distance from the Galaxy’s midplane, ∣Z∣, colored by mean [α/Fe], shown for each survey: B18 as circles, GALAH as open squares, R24 as diamonds, and APOGEE as stars. APOGEE shows systematically higher T_cond slopes and occupies larger ∣Z∣ on average. While the dominant trend is that higher ∣Z∣ corresponds to steeper T_cond slopes, APOGEE stars exhibit elevated T_cond slopes even compared to other survey bins with similar [α/Fe], suggesting a residual dependence on vertical kinematics or correlated properties such as age. Bins with <10 stars are omitted from this figure.