@TGS the radius around the grip tang on factory beaver tail Springfields is larger than on Colts or most custom aftermarket beaver tail grips safeties. It absolutely makes the gun sit higher in my hand. If you look at the gun from the side the GS on the Springfield will be thicker/deeper.
@Hstanton1 you likely won’t be able to just buy a new grip-safety to drop into your gun. On custom and most semi-customs the frame and grip safety are ground together to achieve that close fit. That means the gun will have to go back to nighthawk and possibly have the grip tang welded back up so a new grip safety can be fit, and then you’ll need to have the frame refinished.