HA! it let me post!
OK, so here is what I found.
I was getting similar result with the reg edit that I posted form the windows ink guy on reddit. This was great except that a new issue occurred where Zbrush was not registering fast strokes and long strokes. The culprit of that issue was indeed FLICKS.
The bad news there is that there is no way to turn them off in the GUI with the current build of windows. So I've been digging around and I've found a way to turn them off in the registry.
Also, I know some of you said that the reg trick disabled your pressure sensitivity. This happened to me the second time I ran the operation after I installed photoshop and saw how broken it is without the reg edit on...it's bad. I was worried that I would
need to do a clean install of windows to get it back but before I did I tried a repair install of the wintab drivers and that worked!
So here is my procedure.
1 - Install the wintab drivers
2 - Run the reg edit command to enable legacy Ink mode (reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Pen /v LegacyPenInteractionModel /t REG_DWORD /d 1 /f) and restart your surface.
3 - If this disables your pressure sensitivity run a repair install of the wintab driver. (this restored it for me)
4 - To disable FLICKS open regedit and go to [HKEY_CURRENT_USER\Software\Microsoft\Wisp\Pen\SysEventParameters\FlickMode] Change it's value from 1 to 0 then restart your surface again.
That should do it. you should have the same performance as build 1511 but with the current build. The other bonus is that Photoshop will work great as well, no more page scrolling bug/feature anymore.
I'm really hoping that the October update will fix all of this, but I have not wanted to join the insider program to try it out.