Top panel: (B − V)_T distribution. Middle panel: star counts for each of the seven age sub-populations of the thin disc assumed in the BGM. Bottom panel: mass distribution. The simulations are done using the combination of the six most probable parameters (MP variant) with the Drimmel & Spergel (2001) extinction map; in red the simulation is done with BGM FASt while in black it is done with BGM Std. The error bars are set to be 5% of the stars in the bin to visualise that the differences between BGM FASt and BGM Std are below it. The simulations are samples limited in visual apparent magnitude V_T < 11 and photometric errors are not considered.