I heard in some cases it's better to use dual Wound Poison for dps, for instance in short fights. I'm wondering what time frames we are talking about. The Sub guide @ EJ tells it is a minor dps gain on Burning Tendons.
I can see @ http://www.wowhead.com/spell=105848 that the Burning Tendons live for maximum 23 seconds so I'm thinking to assume this is a good cut-off value for me to use.
Mob/boss uptime shorter than 23 seconds = use Dual Wound Poison, otherwise normal?