Cracking pics there mate!
When I first got my rotary, I experimented around with doing things deliberately wrongly so I could see how the machine responded in these situations to gauge what the machine responses were telling me... I found that if I tried to fight the rotary and steer it with my hand on the head of the tool, it would tug and pull at me. If however, I simply used my hand on the head as a pressure weight, and steered with my back hand and went with the flow of the tool it was nice and easy to use.
Also, far too much product or not enough produce caused the machine to hop up and down - buffer hop, which also contributed to a tugging effect.