I noticed that when I press a bit harder with the Apple Pencil and move it rapidly left and right, I can see a slight distortion on the screen (movement of the liquid of the LCD). It is barely visible and only perceivable when pressing the screen a bit harder with a pencil on a gray background (I am including the background if anyone wants to test theirs). It's really hard to see and I don't mind it at all (I notice it only if I really try) - but I was wondering what are your experiences? I don't press the pencil hard often, but I don't want to be scared to use it more firmly. Again, only (barely) noticeable with a gray background, with firm presses and wiggle movements of the Pencil. Other colors/finger presses do not show it.