How to "rough in" front end alignment after rebuild?

Righty Tighty said
The cheap cutting board trick worked like a charm, so for $8 and a handful of grease, I'm sold on that idea.
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Does it matter that the overall attitude of the car is changed if you stack the cutting board "turning plates" under the front tires and don't raise the rear by an equal amount?

Asking for a friend. :D