If hammer is down and safety is on the only way to have the hammer back is with you thumb, can't rack the slide with safety on.so how is that a problem? in what case with a single action gun will you have a round in the chamber, safety on, and then manually cock the hammer?When I leave a round in the chamber, decock it manually (isn't it why there is a hole in the hammer?) safety on.Some time later cock it back manually, safety is still on. Boom gun fire with safety still on.
I am just trying to understand all this gun can do before being comfortable with it.
The senario I outlibe isn't too far fetched.