Using the same pistol, and holster you carry, for IDPA competition. Means you have drawn and fired, from concealment a lot. When you see new members gear? And see it change as they get smart, and more experienced, you are then miles ahead in the ability to deploy your defensive equipment.
That in it's self can't be bad. Reading the NRA Magazine, lets you know the use of self defense places, house or dwelling, a lot!
It also shows many instances where people are shot at, from close up... And are not hit. So, a good pistol, night sights, a flash light close at hand, and practice on the range, picking up you pistol to fire, not the same as from a holster.
Many articles talk of the trauma of shooting someone? It sure as heck beats being shot!