Which of the following vaults is NOT eligible for the +0.1 bonus?

The Yurchenko 1 1/2 vault is not eligible for the +0.1 bonus primarily because it is considered to be a vault that already has a higher difficulty value due to its complexity. In gymnastics scoring, certain vaults are allocated specific difficulty values, which determine their eligibility for bonus points. The +0.1 bonus often applies to vaults that are not as complex or where additional execution or technical elements can be added to enhance the routine.

In this case, the Yurchenko 1 1/2 is viewed as a well-established and difficult vault. Thus, it does not allow for the additional +0.1 bonus since it is already seen as adequately challenging within the existing scoring framework. It's important to note that when assessing vaults, judges look at the overall difficulty and the execution of the routine to determine eligibility for bonuses, ensuring the scoring system rewards innovation and technical proficiency.