Wrong Grid Zone Identifier – Spyglass Review

I really like the app but while using the MGRS to mark waypoint it uses the wrong grid zone identifier. I live and hike in southern Arizona along the Mexican border. The grid zone identifier is 12R but Spyglass displays 12N. This is a significant problem. My Garmin, Motion-X, military issued maps and USGS maps all use 12R. Please fix and I upgrade to 4 Stars. It is a battery hog.
Review by Ronin Security on Spyglass.