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Coordinate System Projection Transformations?

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We are trying to project field collected GPS data (shapefiles) from the GCS_WGS_1984 coordinate system to the NAD_1983_StatePlane_Pennsylvania_South_FIPS_3702_Feet coordinate system. I have a screenshot of the projection files that show what we are projecting from and to.

When running the project tool, we need to choose a transformation. What is the correct, most accurate, transformation to use here? When running the project tool, WGS_1984(ITRF00)_To_NAD_1983 is automatically selected, but when looking at this artical: http://support.esri.com/en/knowledge...s/detail/24159 , it looks like NAD_1983_To_WGS_1984_5 may be the way to go.

Thank you in advance for your help!
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