I recently posted this question on the Rangefinder forum and a similar one on the PopPhoto forum.
http://forums.popphoto.com/showthread.php?622245-How-do-you-test-your-new-camera-and-or-lens
I was very surprised that the Rangefinder responses were filled with ridicule and sarcasm.
I do not mind being ridiculed for my anal approach to equipment testing. I will be the first to admit that it is probably overkill. All I can say is that it is based on experience.
When I first started working as a photographer for a newspaper, I used a 35mm SLR camera that was highly recommended by Consumer Reports. However, that highly rated camera broke three times within the first two years of its three-year warranty. The third time it broke was when I was hundreds of feet in the air covering the maiden voyage of a new aircraft that the local university had just acquired. Thank goodness a backup twin-lens reflex camera that I carried allowed me to complete my assignment. As a result of this bad experience, I learned to rely on my own equipment tests more than the test reports of others.
When I worked at a wedding studio, I was assigned photographic equipment that had been used and abused by someone else the weekend before. I never knew if the equipment would work or not. Problems with the film transport mechanism, electrical shortage in the sync cord, and failure of the slave unit were common problems. Even if I had no problems with the equipment, I still had to worry about competing photographers sabotaging my equipment like one guy who managed to switch my flash sync setting from electronic flash to bulb flash.
Needless to say, suffering numerous equipment failure while on assignments has made me very paranoid about the functional status of my photographic equipment. As a consequence, I try to avoid being surprised when I use a new piece of equipment on an important assignment by thoroughly testing it. All I can say is that this testing procedure works for me and I only shared it with the hope that it may be of value to someone else.
I was very disappointed in the Rangefinder responses.