Competition shooting is missing one key factor from self defense shooting and that is drawing a concealed weapon. I say key factor and I mean it/ I have practiced for 40 years and I can’t tell you the number of mistakes I have seen or done it myself. This goes from snagging the weapon on clothing, uncooperative clothing and holsters, even dropping magazines and weapons.
A competition holster is nothing like a CC holster. It isn’t positioned anywhere close to where it would be if it was concealed. The shooter doesn’t have the same frame of mind when shooting competition. They are looking to shoot targets in order not in the sense of which one forms the greatest threat. Looking for concealment or cover isn’t a part of competition shooting.
Consequently I don’t see much of the same techniques being used. That’s not to say that competition shooting doesn’t have values that can be transferred to defensive shooting.