Whether it be DA, SA, DAO, or DA/SA, choose what works for you and keep your finger off the trigger.

Learning to manipulate the safety at the proper time and doing so safely takes practice. I know people that didn't want to bother with learning it so they chose striker fired guns, DA/SA guns, or DAO guns.

The problem is, they never took the time to learn those guns either. Two of them shot themselves in the foot.

So again, keep your finger off the trigger.