You're fortunate.Mine work perfectly fine. Maybe you need so help 😄😄😄😄🙏🙏🙏🙏
Not everybody else has similar experience.
I'll venture to say that are more tiny spills and gasoline splashes to eyes from using these spouts than from the older no-brainer spouts. Nope, no peer-reviews white papers, only real world experience.
Cut the excess plastic mold tails away and you are good.