Figures demonstrating the change before amplitude self-calibration (left) vs. after amplitude self-calibration (middle), with the difference of no-amplitude minus with-amplitude self calibration shown on the right to highlight the differences. These three images, G010.62 B3 (top), G012.80 B6 (center), and W51-IRS2 B6 (bottom) showed the greatest structural difference and greatest noise improvement with amplitude self-calibration included. While the noise decreased, and structure moved, the sum of the flux and the peak intensity changed by < 2% in each case. The images use the cleanest spectral selection.