The first thing to do is to take the side plate off and use a drying solvent to clean ever trace of lube out of the action. Then put it back together and go shoot 200 to 250 hot rounds thru the gun. Clean and oil the barrel but not the action. Then take the gun to a competent S&W pistol smith and ask him if he can give you what you want. OR, get the above mentioned video and the Jerry Kuenhausen S&W manual and a Wolfe spring kit and do it your self. (It's your gun) ............

Shooting the gun while dry of any lube will give you rub marks that can be read as where polishing is needed. The spring kit will finish the job. ..........