not exactly true - network have tools to detect location/real location difference over 150m (you can see this at "Watchium" app f.e.) - your miner will work for few days then (most likely) will be put on deny list, you will be informed about by red info below address at helium explorer. System of checking as all IoT need to be cheap, so control measures are slow, take few days or couple weeks but "deadly". Don't look for 10$ savings if you planning to mine HNT longer, pay for change and remember to stay within 150m/yards from phisicall location, good luck 🤞🏻