What if your CZ doesn't have an FB? (I'm not trying to be a wiseguy, I'm new to CZs and for now I use my support hand to grasp the hammer to lower it but it makes me a bit nervous that I'll slip...and isn't that a DQ if you do an ND in an event?)
If you place either your support hand index finger or thumb lighlty on the hammer, pull the trigger, and slowly slip/roll your finger out of the way after the hammer stops, this will prevent an ND while manually decocking.