Okay, a brief review of the OEM tall screen. As said above, rode about 1200 miles this weekend so plenty of time to get a feel for the new screen. I'm mostly comparing this to the 24' Parabellum/Wasp bracket set up I had on my 2012. Compared to the stock '14 screen, it's a definite improvement, similar airflow really, just more coverage. Just keep in mind your height, posture, build, seat height etc. are always the variables in these analyses. I'm 5'10", 200lbs with a 32' inseam, have a Corbin in the 'low' setting.
Tall screen in low setting: This one obviously allows the most airflow. Works great in calm air, due to the adjustable bracket putting lowest setting of screen at most severe angle which seems to flow air at sharper angle, but can be a little rough in strong winds (had plenty of those this weekend). Also allows the most bug strikes to most of the face shield of helmet. Best for calm days and hot weather. Probably best setting for fuel economy too.
Tall screen in 2nd lowest setting: Much as the lowest setting, but obviously flows a little less air, and fewer bugs striking shield, but you still get them. This setting still has the screen at a pretty severe angle, which, again, is good for quickly flipping the air over your head.
2nd highest setting: Probably used this the most. Gives ample quiet pocket (more on that later) and hardly any bugs to helmet screen, minimal tumbling back draft.
Highest setting: Only used this briefly on the interstate for around 100 miles, but it was very windy at the time so not sure this is a completely valid analysis. Seem to get some pushing at back of helmet from back pressure, possibly because screen is at most upright angle in this setting (again, due to bracket adjustment), but the high winds may have exacerbated this condition. Still haven't tried in calmer winds as there weren't really any to speak of during entire trip.
Overall noise/buffeting report. Noise in all settings is a fairly constant, fairly loud 'whooshing' noise, in the lowest settings from the clean air hitting mid/top of helmet, in the higher settings from I'd say back pressure passing over and swirling around very top/back of helmet. Again, it may be different in calmer conditions. I wear earplugs always so I was mostly just conscious of it, but not really annoyed by it. I was still getting a little helmet shake, I suppose you'd call it buffeting in all settings, but it's not an eyeball rattler like some screens are. To be fair, I would get the same with the Parabellum when it was windy out.
The clincher, and the reason I'm going to stick with the screen, at least for the foreseeable future, is that the bike seemed much more stable in heavy side and headwinds than the Parabellum/Wasp setup on my '12 -- the '14 bracket doesn't move the screen forward like the Wasp did, and the OEM tall screen for the '14 just isn't as large as the Parabellum was, which really did catch a lot of wind in windy conditions, to the point that I saw it as a real drawback to the setup on the '12. If you live in a calmer locale, you probably wouldn't be so concerned about it, but it is almost always very windy here, and I appreciate the added coverage of the new tall screen, but that it has no real stability disadvantage in the heavy winds. Just don't expect Goldwing levels of coverage and you probably won't be disappointed.
So, it works for me, but you all will in the end have to make your own educated decisions about the OEM tall screen.
Couple of photos from the weekend trip, a very enjoyable loop ride through the Black Hills, over to the Bighorns, back home through the Northern Cheyenne Indian reservation in Montana.