Hertzsprung-Russell (left) and luminosity versus MAD (right) diagrams for the final RSG sample. Targets are color-coded with the MLR, while targets with relatively large (> 0.1) and very large (> 1.0) τ are marked by the open squares and open circles in the diagram, respectively. The dashed lines indicate the luminosity of log₁₀(L/L_⊙) = 4.6. For clarity, only the general population (without the extreme outliers) of the sample is shown in the diagram. In the luminosity versus MAD diagram, there are a few targets showing large MAD with low luminosity and MLR, which are mostly targets crossing the instability strip (because of their large variability, their is T_eff variable, meaning that sometimes they are RSGs and sometimes they are yellow supergiants).