Eccentricity evolution in merging galaxy simulation M1q0.5fg0.1 without (left) and with (right) MBH accretion and feedback at 100, 50, and 10 pc resolutions, with ten runs for each resolution with different star formation random seeds for the purpose of gauging stochastic variations. The dashed lines illustrate the evolution in general RAMSES above the resolution limit. The change from dashed lines to dots indicates when the MBHB evolution is handed over to RAMCOAL from RAMSES at the boundary of the resolution sphere. One additional run with resolution-dependent AGN feedback efficiency at each resolution is also plotted to illustrate the effect of feedback efficiency on the results.