RE: A quick bow setup how-to...
Heard the same thing myself. I actually had a laser on order and cancelled it after I began walk back tuning. I just eyeball it now or use a (tru-gauge?) and walkback to get center. I leave the range happy and confident my centershot is set.
I think it is more of a confidence thing than anything. Before I walkback tuned centershot I always felt my bow was off unless someone used a laser on it.