Ive shot both. The QS are loud, flimsey, expensive and slow your arrow down. I fletched 6 arrows with them and I didn't see any real improvement over the easton diamond vanes. I then fletched a few with blazers and saw a slight difference in accuracy. However, they were light so it increased my FOC and made the arrow faster. They are also very durrable. I currently use blazers with a 4"wrap and still weigh less than QS with out. By the way I use a wery slight right offest. Good Luck.