I think you need to appreciate that someone can in fact read your posts thouroughly and simply disagree. I understand the concept and your contention. I think you are overstating this because I know for a fact that many modern measurements are arrived at in the same manner as they wer eback then,,,ie no 6 hour clear. Obviously I'm not dismissing it entirely because no one was using the 6 hour method back then and some are today, but the bottom line is that modern measuring techniques are not consistent and in some instances underportray snowfall because they are not taken in a meticulous manner.
With regard to the second bolded excerpt, you actually didn't read my post throughly enough. The inference is that the "ceiling" for snowfall in a given event may be somewhat higher today due to the increase in moisture...ie in larger events when there is no mixing and SG is optimal.
Third point....I am not suggesting that older measurements are "untouchable and pristine"....in fact, I am suggesting the opposite. I am leaving open for the possibility that under certain circumstances they may have been more prone to error in either direction.
As for "predispositions"...perhaps I should start a poll in which people can chime in anonymously as to whether or not they think you have any...I have a very strong predispositon as to what that perfunctory analysis would reveal.