Competitive shooting is excellent for mastering the mechanics of accuracy, and gun handling w/ the pressure of performing in front of your peers. It does nothing to address the key elements of positive target identification/discrimination that are essential in a defensive context. I can shoot targets faster than I can effectively discriminate bad guys from good and will a pass through strike an innocent.
Speed must be moderated by perfect target ID and absolutely not missing. This goal takes a lot of work and would help a seeker find a good teacher.
mike r