Doing slow rolls (using elevator and rudder) helped me learn to torque roll better. It gets you used to seeing the plane from different angles and will improve your reactions in a torque roll to keep the plane vertical (at least it did for me). However, to torque roll you need to learn to hover first, and that does need practice. Even with any tricks you might learn from people, you need to PRACTICE these tricks to be able to perform them.

Marcus