Surface Pro 3 Wavy diagonal lines when inking

Here's mine:

http://dai.ly/x2yl77c

In the video I am drawing circles with my palm touching the screen (also known as: normal drawing).

At the end of the video, I take my palm off of the screen, and the circles are perfect.

Whenever my skin touches the screen, the cursor just goes berserk!

I've traded in the Surface Pro 3 TWICE, but the issue persists. I tried 4 display models at the store with the same issue! The manager said the last guy who came in, traded his Surface Pro 3 FIVE times, and the issue persists! He informed Microsoft (as did I), with no response.

This thread has countless responses, and Microsoft is still silent.

Very nice. Here's mine.

Here is a little test from me,

maybe it helps someone here :D

Hey, those lines look pretty good compared to what I get. Mine are more like stairs.

I have a  Surface 3 not the Pro 3.

The problem is noticeable in many Apps in Windows 8.1 and now Windows 10.

I'm writing an Universal App for which touch input accuracy is vital. So far the Surface 3 has failed miserably.

My Windows Phones, Nokia Lumia 2520 and even the Linx 8 Tablet are working flawlessly using exact same code.

This Problem is either a Hardware or Driver issue that needs to be looked into.

Calibration will do nothing.

Registry hacks help a little.

Anyone at Microsoft:

Windows API C++:

CoreWindow::GetForCurrentThred()->Dispatcher->ProcessEvents(CoreProceesEventsOptions::ProcessAllIfPresent);

is unusable for multi touch.

CoreWindow::GetForCurrentThred()->Dispatcher->ProcessEvents(CoreProceesEventsOptions::ProcessOneIfPresent);

will smooth out touch input for multi touch only.

For single touch and Pen, i've know idea. Just adding another finger on the screen will smooth things out ie. more touch points. Single touch is Borked.

My concern is that this problem is exist on 1 out of the 6 of the devices I use for testing... the most expensive one :-(

So help me... That would make me so angry