I just like to say about how i feel about it.
When I was getting tips after class from my sempai. He told me a common mistake was that I didn't always follow through. Sometimes the direction in wich i was rolling didn't coincide with the direction he was throwing me. He showed me how much you can damage yourself if u don't follow. Try and feel your partner more. And to me jumping is dangerous, especially if u made a bad estimation of the force and direction the throw would have. I prefer to keep my body as low to the ground before rolling or taking a breakfall. Good luck