True, but it's interesting to note that the effect Oldskool was looking for still wouldn't have been achieved by your suggestion! Most of that type of material is 35% or above in transmission.
I do suppose that my situation is quite different than others on this board.
I do not have a bezel, and have a black cased computer monitor inside of my cabinet, which has been painted black internally.
My goal was to have the inside of the cabinet blacked out (as well as the monitor case), and the screen still visable.
The 5% tint did, for the most part, achieve this, but it dimmed the colours a little too much for my liking. With the brightness turned up, Golden Tee was still very playable, but it was bugging me.......
The switch to 35% tint has made a world of difference. The screen is (obviously) very clear, but I can now see the inside of the cab. That's why I stated that 20% probably would have been what I was looking for.
I'll take some pics and post them later.......