Just do what manlicher did and get busy learning to maximize its efficiency in low light.
Shoot, move, shoot again.
Try to operate the light, turning it off and on by using your support side thumb.
Try to never use your trigger finger, or any other finger, as to prevent a sympathetic reflex discharge or making a mistake by accidentally pulling the trigger when you meant to turn on the light. In high stress, without good training and practice, dumb stuff happens. That's why I try to only use my off side thumb to work the light.
They are a stellar tool and great advantage when used properly.
As usual Mac is spot on. In fact our training with pistol lights is centered around only using our support side thumb to work the switch.
