I have come across a post from November 2015 on this subject by dnault42 - Amount of noise reduction in superbias.
Am I right in saying that if I apply the Superbias Process on my masterbias frame with the 'columns and rows' setting and then applying PixelMath with the expression: superbias_v + superbias_h to my masterbias frame and using the resulting Superbias is correct?
I am using the latest version 01.08.06.1448 Ripley (x64)
Thanks, Ray