Difference Δυ_γ = υ_γ,GDR3−υ_γVELOCE between parameter average_rv from gaiadr3.vari_cepheid and υ_γ from VELOCE for 71 well-behaved non-SB1 Cepheids as a function of the Gaia correlation template parameters and the number of Gaia time series observations, num_clean_epochs_rv. Orange points highlight the 33 Cepheids whose Gaia RVs were measured using the most suitable template parameter range 5000 ≤T_eff ≤ 6500, log g ≤ 2, and −0.75 ≤ [Fe/H] ≤ 0.75. The green point in the right-most panel is RW Cas, for which the template parameters are not known. Trends appear among all template parameters, with cooler templates or higher-log g templates yielding larger positive offset. RVs measured using adequate template parameters show significantly improved scatter.