Ok, I don't know if this is any help or if anyone else has discovered this, but I have noticed something that may explain why users are seeing the wavy line problem but developers can't seem to notice it. If you hold the SP3 Pen SUPER striaght, I'm talking
completely perpendicular to the tablet, the issue is SIGNIFICANTLY reduced. Like pretty darn near straight lines, even when drawn slowly. However, the second you draw a straight diagonal line while holding the pen like you would while drawing a normal picture
(Slanted quite a bit and held near the tip), the issue is greatly magnified. So I can see why the issue might have not been seen if tests were being preformed by robots or people who don't draw a lot.
So Microsoft, N-Trig, whoever, this is what we are doing: Drawing slow, diagonal lines, circles, and other normal things. We are holding the pen like you would any normal pencil or pen, we aren't holding them like a robot at a perfect 90 degree angle. The
lines are wavy, innacurate, and very poor. This is with every Surface Pro that we can get our hands on. Please, please aknowledge the fact that this is happening. Try drawing a nice picture or writing a smooth word with the Surface Pro 3. So far every official
answer from Microsoft is just denying that the problem exists. I love my Surface! I want it to truly be the Tablet that can replace my laptop. But when I can draw straighter lines on a Nintendo DS than a machine I dropped 1000 dollars on, it just can't be
that. These forums are all that many of us have to turn to, please help us out, please investigate and fix this.