Gaptooth

Grats to those who have obtained the "skin". However I have gotten the quest and cannot defeat Saurfang. Some of the posts I have read and some of the videos i've watched show Saurfang as a "pushover". It also shows him to have very low HP, which couldn't be farther from the truth in my instance. I saw a post that a player had to get my to 50%. Is anyone having similar issues?