The correct answer to the Passover Quiz is the skill is first legal in Level 2. The rules state “Leap frogs and leap frog variations are not allowed in L1” with Leap Frog Variations recently being defined as:
Leap Frog Variations involve a top person transitioning over the torso of a base and/or another top person.
In addition, the stunt passes through prep level without a spot, which isn’t allowed in Level 1.
The explanation is based on the 2017-18 version of the cheer rules dated August 30, 2017.