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E.R.. don't wish to nit-pick but when I measured the distance from frog to points, I effectively was measuring back from the end of the curve which is not easy to do accurately.  But since the points start a bit away from the end of the switch, I would expect the precise angle to be greater than what I calculated from the distance I measured; i.e., how far along the curve did the frog lie.Are the figures you posted from calculations from physical measurements or from LGB data? Art
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