This accuracy/reliability of chronos reminds me of the laser rangefinder ordeal I recently went thru. With the LRF devices, it seems that the calibration of the individual unit is just as important as the make/model (to a certain extent). I had a great Swaro, and a crappy Leica. Now have a replacement Leica that ranges as well as the Swaro, but I know others who have had the exact opposite.
