Yes. Absolutely. I can shoot quite well with 5 lbs, so why give some scheister lawyer an opportunity to weep and moan to the jury about my "hair trigger"?
For the same reason, the words, "I didn't mean to pull the trigger!" should never pass your lips. You shot to stop the attack because you believed your life was in danger. You intended to shoot - it was no accident. It was the fully justified decision of a reasonable person who was in control of his emotions and his weapon.