Sheesh Wayne, if I were doing this I would have to consider whether it would take me more time to work through the logic than to just cover one panel at a time. :lol:
In seriousness, I suppose it would depend on the details of the size and number of arrays and how many panels were identifiable by other means.
five.five.six, I would probably suggest in this order:
1) camera, selfie stick. (You
might be able to get the numbers on the top of the optimizers this way. There are labels on both top and bottom.)
2) safely disconnect one string
3) temporary covering
Between 1 and 2, depending on your luck, you might be able to narrow it down to where only a minority are 'faked'.
The most important thing would be to keep careful notes throughout.