For the Exported positions csv files the following projection data was used:

Horizontal
NAD83(2007) Arizona State Plane, East Zone, Meters
Horizontal Accuracy Estimate <1 meters

Vertical
NAVD 88 (GEOID03)
Vertical Accuracy Estimate <2 meters

I left the numerical values in meters after checking accuracy estimates rather than converting them back to standard International Foot designations.
Tom