Open the side plate and look for any wear on surfaces, that is where polishing will help smooth out the action. Also I remove both the trigger and hammer struts and polish them butter smooth, that will make double action very smooth. Once you have done that work, then decide if you want to install new springs. Stay away from the sear surfaces, that is best left to a good gunsmith. Enjoy, take your time, review youtube videos, and then enjoy shooting a smooth revolver.