Every tool in this ecosystem has a trade off. Terrestrial scanners, handhelds, mobile systems, drones, photogrammetry, the list goes on. Each one buys you something and costs you something else, and the right answer changes with the project, the deliverable, and who is signing off on it. This panel is an honest look at how practitioners actually decide. How do they test and validate a device before trusting it on a job? How do we verifiy a devices accuracy? and what happens when published specs meet field conditions? And who carries the liability when the data turns out to be wrong? A candid conversation about tools, tolerances, workflows, and how we should think about data collection.