From Free Running Wiki
- Scott Jackson's Garden Training video brought attention to several variations involving hanging from another person (his brother Adrian Jackson) on top of the wall, including the neck devil drop, where both hands are gripped over the back of someone extending their head over the edge of the wall.
- The angel drop and cat sideflip are different flips executed from the same hanging cat position (backflip and inward sideflip respectively).
- Devil drop halftwist, a devil drop with a 180° spin on the flip.
- Double devil drop, a devil drop with another flip prior to landing.
- "YouTube - Garden Training: Two". Youtube.com