Isochronal analysis of AB Dor Ba/Bb and other low-mass YMG binaries with known orbits. Brown symbols denote TWA members (TWA 5 AB), red are BPMG members (diamonds: GJ 3305 AB, triangle: V343 Nor B), blue are ABMG members (asterisks: AB Dor system, circles: GJ 2060 AB), and magenta are UMaMG members (J1036 BC; the two stars appear as one point since they have equal derived properties). Black symbols denote unclear YMG membership (HD 160934 AC). For AB Dor Ba/Bb, the original A15 masses are plotted as grey asterisks, while the masses scaled for the total mass derived in this work are plotted in blue. Also plotted are BCAH15 isochrones going from 10 Myr (top) through 30, 50, 100, and 300 Myr (bottom). The last (300 Myr) is already close to the main sequence at these masses, and thus largely indistinguishable from older ages.