I guess it all comes down to personal preference. While yes it is nice to get another acid blade ticking on the target, personally, I see it as a slightly 'cheap tactic', similar to when a Shadow/Assassin combat stealths, saps and regens. You may see it differently.
When I was learning the DPS Scoundrel, I avoided using the double opener like the plague, as I didn't want to become reliant on it to kill a target, I still avoid using it today unless the circumstances of the fight escalate quickly out of my control due to more opponents showing up (and I decide I want to take one down with the ship).
I didnt think of it like that, ive just always done it. but yeah i also use it to buy some time and take one down before i get mowed. ty for the constructive criticism. thats the reward for posting a vid. the risk is the lol's and trolls