Yurchenko full on, tuck
Round-off full on, back tuck
Patrizia Luconi (ITA)
In terms of naming, you will mostly still hear this style of vault referred to as Yurchenko full ons, though the requirement of a full twist onto the vault is a leftover from the vaulting horse day, and now a “full-on” vault simply requires 3/4 or more of twisting onto the vault to count—much like the Tsukahara requires at least a 1/4 twist. You can see this push and pull in the code image itself, where the verbal description says 3/4 turn, but the image depicts a full turn.
The full-on vaults are very rare—because of being, you know, hard and complicated—and because it’s just quite difficult to get anything on that vault following a full twist. You’re not going to have much of a post-flight. Not helping matters is what a hit vaults like this took in the 2017 vault devaluing, the Luconi losing six tenths while most vaults were losing more like four tenths.
The full-on was a pretty swift follower to the introduction of the Yurchenko, with Luconi coming along with her full-ons only three years later.