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@gbj_tester
It doesn't actually take a genius, it's fairly simple trigonometry.
For a quick and dirty estimate, it takes about a ¾" lift of the head tube to slacken the head angle by 1°.
Sticking a complete Pugsley front end on a 1x1 will lift the front by about 1" (2.5" increase in rolling diameter, ¼" shorter fork), so around 1°20' change in angles