I am attempting to collect data on the month that you received your TH and the Compass / GPS errors. This is for the purchase to see if there is a pattern that could indicate a hardware batch / lot of parts that were used and they are causing issues. I have excluded software version from the poll, but I would interested in your comments below that state your recieved month and the version of software you are running and if you have compass/gps errors. This will be used for secondary investigations if no clear patter emerges. PLEASE ALSO... Please also look for the poll that attempts to find something in common with the software load and the unit of measure you are running with your TH. Correlation effort for errors in compass between metric and imperial ?? Thank you for your assistance.