Greetings...we recently purchased a 2nd data collector. Our guys went out to the same site to work with both units. When they get back to the office, I try to import both job files to the same TBC file. I get an error. The error I see in the report is "Project Height" is different in the 2 collectors. What does this mean? The elevations on the shots seen to be ok. Is this a problem? Any info will be greatly appreciated.