Keeping one's finger off the trigger till the target is in one's sights prevents accidental discharges.
And additional 5 pounds of trigger pull does not.
Undoubtedly. Though if that's true, why don't we all have pistols with 1 lb triggers?
Know the status of your weapon
Keep your muzzle oriented so that no one will be hurt if the firearm discharges
Keep your finger off the trigger until you have an adequate sight picture
Maintain situational awareness