Why do you think the grid density is lower in the 14"? Do you think it's an intentional gimping? If so, by Wacom or Lenovo? Do you know what the physical difference is between a Wacom capacitance Pen&Touch system and a Micro soft? Are the grids different, or the controllers, or the pens, or all 3? Are they patented designs? Without considering grid density (which appears to differ from one Wacom part to another), is the Wacom design inherently better? If so, why? Thanks in advance!