I agree with the potential mechanical problems and didn't like the lock feature on the 1000/4X. I much prefer the 3X way. I use that tilt ALL THE TIME - it is an absolute must for me and the glare can ALWAYS be eliminated with the parameters available. In a pinch, I can always just click it down with the keyboard off (not recommended).

The Genos comment sounds interesting that they a solution for glare. Also agree they should just elevate the screen, like a Roland VA or sort