I'm a new WAG fan and I'd like to preface this by apologizing if this is a dumb question or if it has already been explained. During the 2012 and 2016 Olympic cycles many women were performing the Amanar vault ( Yurchenko with 2.5 twists), but now the most difficult vaults I've seen most people do is the double twisting Yurchenko. Is there a reason why women gymnasts have decreased overall vault difficulty in this new cycle (except for Simone Biles and a handful of others?) Is there no advantage to doing more difficult vaults anymore? Thanks so much in advance for your insights.