A local stringer mentioned that he strings mains and crosses at different tensions as he approaches the edges of the frame. For example, with 16 mains he might string the four center mains at reference tension, the next four from center up/down four pounds from reference (I don't reall if it was up or down), and the final two at the edge the opposite of the previous four (up if the last four were down, etc.) He does the same thing with the crosses working from center to tip and throat. Does this truly result in a more consistent stringbed? What's the best way to do this assuming gut mains and poly crosses? It seems to make sense but is it worth it?