Not sure where to take this next.
I restored default settings on Nvida, added vpinballx.exe back to the Program Settings and ONLY update the VSync to allow the 3D Application to manage.
I matched my Video Preferences for VPX to match Terry's exactly, was able to get Unlimited to be the only detail option by restore defaults to my Video Preferences and setting everything else again.
Went into the AFM Table Settings and had those match my Video preference. Still got stutter. Read through the 'True Full Screen in VP 10.1' thread, tried the
settings Hauntfreaks recommended in that I set my 4x AA to Default, FXAA to Default, Update in Game AO to Default, Vsync to 1, checked override and took my detail down a couple of notches.
Also verified my B2S was running in EXE by default and that the 'Start this Backglass in EXE mode' is pressed.
None of these things make the stutter go away.
Crazy thing is when I first made all my changes the table ran smooth for about 3 or 4 minutes... then it started to stutter, now after reboots and restarts the table stutters out of the gate and I even have the sound stuttering.
I am not in any way afraid of blowing away this Windows 10 install and going back to Windows 7... I had all this stuff working just fine a while back and I have no idea what changed to make this all go sideways.
Thanks for the support help, it appreciated... I'm going a little crazy here.