I did a search but couldn’t find it already suggested. So… Do you have any plans to allow users to adjust the thickness of the strokes? Not only for tapering ends, but also multiple thicknesses along the length of a stoke? This would really help create that hand illustarted look.
Here’s a video of it in action in Illustrator
Aside from pulling at handles that you see in the video, you can also mouse over a stroke with the tool select then use the mouse wheel to increment/decrement the thickness of that part of the stroke.
Here’s a not fun method I used to create the tapering line effect :D