Perhaps we are all, on the forum, a little bit OC :)
[quote] I had to special order some screws, since the Viewsonic panels I use (19" widescreen, not sure of the weight.) have screw holes that are abnormally shallow
I'm favouring a ViewSonic VX2260wm, so this may well apply to me. Was the special order to your local hardware store, viewsonic, or ergotron?
As for alignment, mmm, with 22" monitors (I have checked that the dimensions are within Ergotron spec, despite their stated 21" limit) the rotational/torsional effect might be pronounced! 3 seperate arms may even afford better alignment!
I ordered them from my local hardware store, and it took about a week. Just in case you need the information later, the screws that are included are Metric 4x10mm, which were a bit too long, so I got and used 4x8mm, and it worked perfectly with mine.
I don't mean that there's anything wrong with the stand when I say the alignment is a bit off, it's basically a function of the way the monitors attach to the arm. you place the bracket that the monitor is screwed into onto the arm, and then basically turn a screw with a plastic gear on the end, which tightens the bracket until it stays in place.
The bracket is designed to rotate slightly as well, and it's also held in place by the screw and gear, so when you lock it in place, it might turn a slight bit (about a mm) as it finishes tightening, so that's the really small alignment I'm talking about. It can be defeated if you are careful, it just wasn't worth the time when I was assembling it, although I'll probably fix it later.
EDIT: Also, let me say that compared to the "stand" that my monitor came with, this monitor stand is much, much better. The stand the vx1940w comes with only has tilt, and it's very clumsy. This stand has height, tilt, and saves space, so I'm definitely happy, even with the slight quibbles.
Just wanted you to know that even though I have complaints, this stand is definitely a good buy, especially if the stand your monitors come with is as cheap as this one. :D