1D and 2D marginal posteriors for CFIS-P3 using different ranges in S/N. The 2D inner and outer contours show the 68% and 95.5% credible region, respectively. The shear calibration is global. The case with the full S/N range (blue) is compared to the case where we use −2 < S/N < 3 to minimize the effect of residual bias (red). Ω_m shifts by +0.027, which corresponds to +0.5σ when we cut the high S/N peaks.