Measurements - Need some help

[Fonte Boa]

There is no Intersect issue, Geta (unfortunately at the notebook i'm typing now there is no capture video app). Get the transversal piece you've adjusted with Snap for about 3'10", select those edges you used during Intersect, Cut them by 2 and Connect the resultant verts, and measure them: you'll see their lenghts vary. This is consequence of that "unilateral" Snap operation.

I'll try to rec a video tomorrow, if you need.

ps: great, great, great to see you record these videos! Keep on!