Lori Daniels demonstrates going from a rim delay to a center delay. This is a critical skill that marks a new level of nail delay control in one’s game. It is used all the time since the disc may come in at and any angle. It is also used if center control is lost. As this skill improves so will center control and eventually you’ll be able to set and angle you want.
Here Lori uses a technique swooping down and then lifting upwards. As the disc travels up push across at a right angle to the center. This will cause the disc to tilt and flatten outs. As it flattens spiral your nail in towards the center and gain center delay control. For an in-depth written description of this skill, check out this article I wrote back in the 90s.