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6:27 I think of "back tangent" and "forward tangent" as being from my perspective if I were standing on the PVI and looking toward increasing stationing. From this view, "back tangent" would be behind me and "forward tangent" would be in front of me
6:27 I think of "back tangent" and "forward tangent" as being from my perspective if I were standing on the PVI and looking toward increasing stationing. From this view, "back tangent" would be behind me and "forward tangent" would be in front of me