The best method is to BLOCK the rear of the slide and FR with your off hand thumb. Put the pistol in a safe position. Now, press the trigger and immediately let off the trigger - once your finger is off the trigger it is impossible to have the gun discharge if you have a FP Block. Now, the hammer will set to half cock - and you roll your thumb out of the way and you are ready to holster. I fire on DA at the range hundreds of times like this to practice DA then SA, or DA only.
"Pinching the hammer" as MANY touted reviewers show is harder and not as safe. When you BLOCK the slide with the thumb, it is impossible to drop the hammer on the FP and discharge the pistol.
BTW, halfcock is easier to shoot from and aids in accuracy because it shortens travel. No reason to lower all the way.