Forum:DO PIERCING EFFECTS STACK?

Say you have a Piercing monster, like Saber Beetle or Bitelon. If you activate a card that gives it Piercing, like Slash Strike, does your opponent take double the Piercing damage? It seems to me like they would, because each Pierce says your opponent "takes battle damage equal to the difference", so after both effects activate, would your opponent take double the Piercing damage?