Larry & Jerry, if you follow those challenges, you will see that the LRL/dowsing proponents have already given satisfactory explanation to their refusal to enter into these staged tests. As much as I wish the mere declining to be tested, was proof of something's inability to work, it (the declining) doesn't prove they don't work. The proponents have all their bases covered there, for their reasons for declining the tests. They will go on and on about how the tests can be flawed, skewed, corrupted, etc... So for example: one test, where a LRL or dowser appeared to fail, was explained away by the proponents of the devices, by saying that the doubters (the guys with metal detectors) had some sort of jamming device, like magnets in their pockets, for instance, that obstructed the rods from working properly. "Those dastardly detectorists!! See if I ever engage in one of their childish contests ever again!!" And other such claims that the tests won't be fair. Ie.: "who plants the test target? How do we know they're impartial ....... and not simply 'on the side' of the anti-LRL crowd?" You see, if the anti LRL crowd sets up the contest (ie.: picks the field, picks the type target, picks the person who is to plant it, etc.... Then by MERE definition, it is already unfair to the LRL crowd, who is easy prey for hanky-panky staged corruption of various sorts. Hard to argue with this logic, isn't it Larry & Jerry?
And Jerry, for anyone who says, as you did: "It has been proven time and time again ...... they simply do not work." The proponents will simply come to the table with a jar of gold or silver coins, that they say WAS found with their LRL. So they too, would simply turn your statement around, and say: "It has been proven time and time again, they simply do work." (I mean, afterall, you can't argue with a treasure sitting right in front of you, can you?" And if you try to claim photographic fakery (ie.: false advertising, etc...), then so too, can the LRL proponents, question the "supposed" coins and treasures found with metal detectors, eh? Why the double standard? And do YOU find gold and silver every time you go out with your detector? No, of course not. We have days with no goodies all the time, right? And for example: perhaps I've found 12 gold coins with my detector, and another guy, detecting for the SAME amount of time, has found zero gold coins. Does this mean that his detector "doesn't work"? No, of course not. It just means he didn't have the right skills, patience, research for good sites, etc.... So too is it with LRLs (the proponents will say), that just like detectors, it takes patience patience patience, research, skill, etc... Why the double standard? If it didn't work for you, then you simply weren't doing it right, didn't practice long enough, and ..... heck, maybe there's just no jars of gold or silver in the place you happen to be detecting at?
So you see, all the things you've said, they've got their "bases covered", with come-backs that seem un-assailable.