Home alignment, what about thrust angle?

Great idea on the wheel dollies. I imagine you could you your 20* turns to check caster that way too.

Seeing it helps too. I've been watching a ton of videos on the process as well. It still seems like the strings could be canted one way or the other though. I get that you measure two points on the rear wheels, but even a small error there would be substantial up front. Maybe take a measurement off the body from the same point on either side up front to make sure the stings didn't drift one way or the other? Either way I'm going to try it. I'll likely buy a camber caster gauge too.

Thanks again!