I rubbed out the HB shading on the bowl so it is just 6B, 4B and white:
![A bowl](https://devyse.co.uk/wp-content/uploads/2021/01/20210128.jpg)
This works okay. I’ve also added more swatches to my earlier swatches:
![](https://devyse.co.uk/wp-content/uploads/2021/01/20210128b.jpg)
So I could try 6B, 3B, B and white if I wanted three tones plus white. I’ll carry on for now with just 6B and 2B.