Mass ratio and individual MBH mass evolution in the merging galaxy simulation M1q0.5fg0.1 with MBH accretion and feedback at 100, 50, and 10 pc resolutions, with ten runs for each resolution with different star formation random seeds. One additional run with resolution-dependent AGN feedback efficiency at each resolution is also plotted to illustrate the effect of feedback efficiency. The vertical dotted lines indicate when the MBHB evolution is handed over to RAMCOAL from RAMSES at the boundary of the resolution sphere.