Calibration and workflow question

Hi all, I am using Sentinel-1 SLC data for a PSI and SBAS project. The idea is to do the pre-processing in SNAP 12 (up to and including computing all InSAR pairs) and then move over to MintPy. Due to the time series analysis I am more interested in the phase information. I am guessing I don’t need to run Radar | Radiometric | Calibrate operator? I think Calibrate operator only really works with the Amplitude/Intensity signal so would not be helpful for the phase.

Also, are there any useful references for folks wanting to work in SNAP and MintPy? I am guessing there isn’t an export option like there is for StaMps…

Many thanks for all your help!