went through his articles ,and can only disagree. He begins with a ‘sheet of white paper’. Please specify ‘a sheet of white paper’, more specifically ‘white’.
Secondly softproofing is about how the colors on the print will look like using given print profile, and this on the monitor or display with its limitations.
Hi sorry for the late reply
I've see Les in action with this process. The white paper is whatever paper stock you're going to print too. Dial it in to the whiteness of the paper depending on if its a warmer mat paper or a cooler gloss paper and save monitor profiles for each.
The intent is to print an unmodified test chart using the ICC profile and matching paper, and then adjust the monitor's brightness, tone/tint, and then individual colour channels to match the paper specifically for the task of soft proofing
So he starts following the ISO standard to calibrate for printing under D50 conditions, but then goes further for soft proofing because not many of us have conditions that also match the ISO standard
Anyway, for soft proofing, if you have the monitor for it, it's very effective