Vision, Splits and Transitions
There are two often repeated ideas within practical shooting training discussions that I keep noticing and don't entirely agree with:
Vision Focus
Transitions are more important than Splits
These things aren’t entirely incorrect, but in my opinion, the way we implement them often lacks depth and shouldn’t be the same for all levels of shooters.
USPSA vs IDPA for Defensive Shooter
If you have access to both and are new to competition -- I suggest you pick USPSA over IDPA. But if you shot USPSA for a while, you might find some new challenges in shooting IDPA as well.