The wiki references YOUR testing that showed +1 Phantom crit padding per 4 CON bonus! I'm skeptical of the claim as well, but a callout to crit padding still resides on the official website, the Wiki CON page, and the wiki Padding pages. So, if it's misinformation, I'd love a GM to step in and provide a little insight.
And I just noticed that there's a whole other subfolder for padding/weighting. Perhaps someone can move this topic for me?
~Whirlin