Distortions when drawing using Wacom tablet in Illustrator

Question

How do I prevent those distortions appearing when I draw?

Answer 1

Draw larger. Zoom out. You're drawing too small.

Or reduce the amount of "variation" on your brush.

When using a brush with pressure settings, if you have angles or curves too close together the pressure can cause "plugging". The easiest solution is to merely draw at a larger scale.