Hi JMz:You cite 0.54 M☉ as the MW mean, but does that closely match the mean for the stars in the local neighborhood, 12 LY?
That's a good question, but I will need a break for a while before I can explore it.
The list of the 33 stars with their characteristics is in
The data I use to arrive 0.54 is in
If you have the time you might get the characteristics for each of 33 stars, and look up the mass for each type, and calculate their average mass.