Good info boochydog and Thumper. I've subscribed to this thread for future reference.
I've decided to just stick with stock and wait to see what you guys think about this taller screen and to see what the aftermarkets bring. Looking at the pics., it looks a little narrow at the bottom to do a really good job, but it may be about the only option that we'll ever see due to engineering constraints created by the fairing itself.
I know with respect to the NCX, in general most riders have been disappointed with the taller screen; and, in another model new model, the CB500X, reviews have stated that the stock screen works wonderfully. So I think it best just to wait; unless the dealer gives me a really good deal on the tall screen. I've read mixed reviews on the CTX700 with the tall screen and stock screen and the effectiveness of each, so I think I'll wait it out for a little bit until I start seeing more of a consensus of what works and what don't, since my budget doesn't allow for a lot of trial and error.