I am using the ESRI "Add XY Coordinates" tool to populate XYZ values in a shapefile after converting .LAS data to .shp using ""LAS to Multipoint" tool. 

My question is: does the "Add XY Coordinates" tool get the location info form the LAS dataset OR is it getting it from the dataframe somehow?

I need to make sure I am getting the actual data from the LAS files because I will eventually convert the shapefiles dbf to a .pts file to do some other calcs outside of ArcGIS.

Also if you have a better way of getting XYZ from LAS in ESRI ArcGIS I'd love to hear that...