Some guns just fit you better than others. I shoot well about any gun in my right hand, but shooting left handed, I am better if I use a single stack. Go figure.I did my best over the years, taking my time and concentrating on pulling straight back, making sure the sights were aligned and I group consistent, but always left. I can shoot the glock 43 better than the 19 or 41. The sig 320 made me look like a stud first time shooting it. It was the full size model. Normally I'm not nailing a grapefruit sized target every shot at 25 yards, especially with a pistol I've shot for the first time.