Originally Posted by MississippiMan
Spandex is not new, it was first used in 2006 but did not garner a big following.
And White on White has been used for some time with Mfg AT screens, and was also tested on this Forum as well. It was found to be decidedly lacking in Blacks while excelling in brightness. That is why using a Gray / Silver Spandex underlayment has become to "Go To" application for those who have actually read up on the subject and who aspire to as brightest an image as possible while not sacrificing too much in Black levels. Ditto in the reverse, as using a Silver Spandex over White gives the deepest Blacks while the White underlayment prevent undue attenuation via light passing through and being wasted, and instead returns a degree of such back to the surface image..
I don't know exactly when it was first used.
However, it seems that the spandex has gained popularity within the recent months.
I looked at most threads on spandex builds in the the past several months and I can't recalled any measurements were ever taken on the different combinations of spandex (white/white, white/gray, etc.)
If those measurements exist, please link them. It would be very helpful for the DIYers to see such data.
Again, it's not about finding the best solution.
Rather, it is finding the best solution that meets the invidual's needs. White/Gray might be the best solutionf or Joe, but White/White may works better for John.
Having the available data/measurements help a person make informed and intelligent decisions.