I am in the habit of using Inkscape for this aspect, I forget to try the Tracing feature in CC.
I will make a concerted effort to give it a try today and re post a comment.
The black and white requirement and not being able to use color may be a issue. This is where the FREE Inkscape works well.
Question: How does CC handle shading? In Inkscape this can become an issue. I have sometimes spent hours editing small dots out of an image to save time and/or to help the CNC final product to look better and not chew up the material.
This one in particular was a pain but turned out after the third try editing out the center of the sunflower.
