DD is getting ready to compete her tusk for the first time in competion and she wants to know what makes a good tusk? How does a good one stand out from a not so good one? She doesn't really have many examples to look at since all the girls at her gym do yurchnko vaults.
Repulsion off the table. i.e. One girl I coached who also competed against my daughter was about 6 to 8 feet above the table when she flipped her tusk. Other than that, form and stick the landing.