Rob Pincus discusses the pitfalls of trying to become a “Speed Demon” on the target range. Practicing to swing through a known set of multiple targets as quickly as possible is a very common shooting endeavor, especially for competitors.
Rob Pincus discusses zeroing your home defense long gun optic and why the normal rules of The Plausibility Principle are trumped by the efficiency of zeroing your rifle for much further distances than you would most likely be using it.
Student alert! If your defensive firearms instructor is not giving you an integrated system of firearm manipulation techniques but rather a set of unconnected techniques that don't integrate well together, don't reinforce each other, and don't contribute to your efficiency by being consistent with one another, you need to challenge those techniques.