<https://forums.minecraftforge.net/topic/87446-solved-custom-bow-pullback-animation-only-loading-one-frame/#comment-409824>
<http://schema.org/text>
"I think you will need to specify the pull value in the first predicate even if it's 0\n \n"
<https://forums.minecraftforge.net/topic/87446-solved-custom-bow-pullback-animation-only-loading-one-frame/?tab=comments>