DavidGinMD

5 hours ago, Zeta Reticulan said:

Oh right, thanks. That's a relief. Oh, hold on, I just realised who the author is of that post on CN. Leopards just can't change their spots, can they? 

It certainly puzzled me that the bottom appeared to be a polymer of some sort. I assumed it was a veneer. If it isn't, I'm glad.

If you want to prove it to yourself you could always unscrew the base plate. I don’t have the experience to try that myself.

In any case, none of this detracts from the excellent review and comparison.

Looking at my 1 year old 2” TV Everbrite diagonal right now, and the base plate is definitely metal, not plastic or resin. That’s consistent with this post from one of the TV tech support folks: https://www.cloudynights.com/topic/837347-tv-everbright-diagonal-plastic-mirror-mounting-plate/?p=12093843