I could do it if the safety was excellent and the gun was drop safe. Basically treat it like a BHP. The DA would simply be a way to have double strike capability if you wanted it.
When I decock a revolver, I put my thumb between the firing pin/transfer bar and the hammer. An added layer of safety in case I screw it up. I am not sure I have even done that with live rounds, just practicing with an empty cylinder.