Well I am not sure exactly what happened. I am just trying to go back in time and remove the last "mod" that was performed to see if the grip safety works again. That way we can narrow things down. The next step would be to check the grip safety pin, but tapping on that could bend your grip safety spring, so we don't want to mess with that unless we have to. And if we do I can have a phone conversation and give warnings to not do further damage. It could be as simple as putting pressure on the GS pin and reseat it. In theory any XD with the Grip safety could get a stick or sticky or limp grip safety. Different things cause the symptoms. For example a grip safety that is limp means a broken spring. A sticky GS could mean something is stick in the works or the pin is unseated.