The type of magic utilized in my own world has many similarities to dreamotion. I did not find it difficult to adapt to dreamotion once I learned the basic principles, but it stands to reason that it would be more challenging for those whose own style of magic works in a different fashion.
I would imagine that the amount of training one has had would play a role as well.
Sender: General Nuadha
I would imagine that the amount of training one has had would play a role as well.