Speedgrade 7.2.1-direct link-GPU-real time color updates?

Hello,
Adobe says that SpeedGrade 7.2.1 now takes advantage of the GPU when Direct Linking a sequence out of Premiere.
Questions:
1.  Does this mean I should see color corrections update in real time in my scopes and monitors the same way I see real time color updates in a native ircp SpeedGrade project?
2.  I have a Black Magic DeckLink 4K Extreme card.  Can SpeedGrade use my 4K card, or handshake with Mercury Transmit, so that I can get either an HDMI or SDI video signal output to my monitor?
3.  I notice that for Premiere, adobe officially certifies GTX 690 for windows, and GTX 680 for Mac.  Does this mean GTX 690 is not supported for Mac?
4.  I tried right clicking on the SpeedGrade app, opening packet contents, and adding gtx 690 into cuda approved card list.  That didn't seem to help.  I did not try to amend the Open CL card list document, would that help?
Here is my system config:
Mac Pro Tower Early 2009
2 x 2.66 6-core Intel Xeon
48GB RAM 1333 DDR3
Cards:
Mac system report says all three of these are GPUs, however, my tech guy says the 640 is for GUI.
1.  NVIDIA GeForce GT 640 (slot 2)
2.  NVIDIA GeForce GT 690 (PCI Lane width x16)
3.  NVIDIA GeForce GT 690 (PCI Lane width x16)
Cuda driver 6.0.37
Media storage is a raided 9TB serial ATA, about 300mbs read and write.  Hard drive is even faster. 
Adobe if you are listening, I'm trying to add SpeedGrade to my tool belt, especially since you did such a good job integrating the Tangent Element.  The whole point of using SpeedGrade, as opposed to Resolve, is that the Premiere sequence links.  I have access to everything, except AE comps.

Alright folks...I'm so close.
So, recap, getting real time performance and color updates using Direct Link in my external scopes and monitor, now that I'm on a Z800, windows 7 64 bit, with Quadro 4000, Cuda driver 394, AJA LHi card and break out box.
However, some problems still:
1.  My internal SpeedGrade scopes are just a group of funky dots that kinda resemble my external scopes, viewing the same signal.  Computer monitor resolution is 1920x1080.  Tried other display options, still funky dots.  Not a biggy, since external scopes are fine, just curious as to what's up with that?  Is it because I'm using the latest Cuda driver 394, instead of an older one, since 4000 is old?
2  Do I need a LUT for SpeedGrade to output an HDMI video and SDI video signal in Rec709 2.4 gamma?  Is it the handshake with the AJA LHI?  Looks like it's spitting out sRGB 2.2 right now.  I imported bars that I made in Symphony.  These bars play out fine in Symphony and Resolve, through the same signal path SDI to the same monitor.  However, in SpeedGrade whites are lower than a 100 and blacks are lifted.  Since the bars in the external monitor look very similar to computer monitor, I'm assuming SpeedGrade is spitting out sRGB signal.  Can't seem to insert the images I snapped, if they would help, I can email them.
3.  Since there is no manual for SpeedGrade, I'm about to buy a 3rd party "class in a book" just so I can have some run down of what some of the settings and preferences options actually mean.  Like what's "shaders?"  Or why does it seem like framerate can be set in three different preference tabs?  Would be nice if there was just a document with a run down of settings and preferences for both Premiere and SpeedGrade.  Especially since I already have great turorials for the actual operaton of SpeedGrade like Patrick Inhofer's.
Thanks in advance.  Wait....do you hear that....Adobe...is that you????

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