There are shelves worth of seforim about chinuch. Unfortunately, none of them are popular or required texts for parents or those working in the educational field. The contents of these seforim derives completely from Torah, not secular study, so there is no acceptable reason to reject or ignore this great body of knowledge and guidance.
Virtually all of them that address the use of the “potch” are clear that giving one reactively is not chinuch, and is destructive. Rather, all advise to wait for another point in time when the mechanech (including parent) is no longer in reaction mode. When one sees this advice, one might question the observation we learned in high school science class, that rewards or punishments that are not nearly immediate to the behavior have no effect on modifying it. However, if we take a closer look at what chinuch entails, it is not about shaping behavior at all. It is about teaching. And the use of consequences for behavior are not intended to force compliance, but to educate the child. If a consequence, whether reward or punishment does not teach the child to want to act properly, then it is not chinuch. Punishment most often falls into that category. That is why Shlomo Hamelech referred to the use of the “rod” in an expression that does not suggest it but rather that it should not be excluded.
The reactive “potch” is labeled by the Brisker Rov ZT”L as an issur of injuring another. Others say similar pronouncements about how we “discipline” children. Check out the many seforim from Gedolei Yisroel of the present and previous generations about chinuch. I have not written any chiddushim here.