Not sure what you mean exactly, but if you're referring to the video linked in the description I'm only using my left hand to hold the wood steady. I use my right hand to draw with and different amounts of pressure make it look a little different. But it's mostly the angle of the pen/tip and the temperature the pen is set at. So for the feathers I probably used around a medium temperature and the sharper edge of a shader pen tip.

Hope that answers your question maybe?