Several things change with barrel length on a hand gun. 1) balance a longer barrel puts more felt weight on the wrist arm. This is due not only to the actual weight but the "leverage the extra weight has due to length. 2 Sight radious and seeing sights a shorter barrel may put the front sight into focal distance for a shooter. This is a plus. the shorter sight radious means sight alighnment is more important. 3) Barrel time is less with the short barrel so tremors flinches and poor follow thru dosnt affect them as much. A 8" barrel a small flinch can really cause a flier, with a 2" or 2 1/2" barrel not nearly as much