Lori Daniels demonstrates the Invert Delay and two sets that can be performed from the Invert Delay position.
The Invert Delay is a flat nail delay where the wrist and hand are rotated inwards until the palm is up. In Freestyle Frisbee this is the Invert position since the hand is inverted from a normal palm up position. This is considered a restricted position since the mobility of the arm, elbow and shoulder are greatly limited.
Once the nail delay is established in this position, Lori demonstrates setting the disc under the inside of the same leg or outside of the opposite leg. Setting under the outside of the opposite leg in the invert position is also known as the Digatronic set. This is one of the most restricted tricks in Freestyle Frisbee.