I have an Old Model Super Black Hawk that I have had for many, many years. When I first got it, the trigger guard beat up my knuckle, also. A set of Pachmayr's solved that problem for ever more.
This is a EXCELLENT revolver. I have shot thousands of .44 Magnum full loads over the years. It is quite accurate and has required NO maintenance except for normal cleaning.
You have made an excellent choice in revolvers.
Dale53