There was some slight burring in the slot in the safety, that rides on the small retaining pin thru the tang. This was not allowing the tab on the safety enough clearance to ride over the top of the finger on the trigger. It would "bind up" prior to riding over. Also, when the safety was stamped, the surface that rides over the trigger, was pretty rough. Anyway, some slight stoning and deburring took care of the problem, and now the safety works with a nice solid tactile "click", the way it should.
Tom