This question has been asked many, many times. But I need to ask again, specifically about a Ruger Custom Shop 1911. I want to remove the left side ambi safety. Slide is off and gun cocked. Safety between Fire and Safe. I wiggle left side or all I am worth and it moves maybe 1 mm, then stops. I seem to be unable to get it any further. I must be worthless. I don't want to pry and risk breaking something, not without asking here first.