Being a novice with guns, at age 67 (with failing visual accuity and physical strength), I am finding it quite difficult to learn efficient and effective double action trigger control with my Ruger KGP 141. So, I am being tempted to give up on double action and to simply practice using this revolver as though it were single action only. What are the pros and cons of yielding to this temptation, in view of the fact that my sole reason for having this revolver is home-defense/personal-defence?