I recently bought a Ruger LCRx .22 magnum, 3 inch bbl. for my wife. Primary use will be home security. My wife is only 5 ft. tall, weighs 100 lbs. soaking wet and has very small hands and short fingers. Double action is too difficult for her little hands. Single action works great. The problem is she struggles to cock the hammer due to the heavy spring weight on the hammer. Is there a way to lighten the hammer pull weight without adversely affecting the operation of the gun?