There are some golden rules. And as with everything in life there are caveats. For every rule you come up with, there is a time when it won't stand the test of common sense.Seems to me that in a fluid situation like a dogfight, there cannot be rigid adherence to rigid rules, only the application of them as they fit the situation.
Dogfighting: Go up blow up. When slow and someone is in your chili, going up just makes it easier. Except when you might have an energy advantage, and his nose can't be brought to bare on you.
Speed is life. It is, until it isn't. Going too fast and your turn circle resembles a SR-71 at well above the Mach. Big turn circles due to speed allows a slower or less nimble aircraft to get "inside" your turn radius and employ (depending on weapons type).
From my perspective, we are given manuals that have notes, cautions and warnings in them (both military and commercially). Notes are applicable to the safe and efficient operations, cautions if not done correctly can harm the plane, and warnings are usually written in blood (if not done properly can cause bodily injury or loss of life or limb). What isn't in the front of the book but should be is a statement to the effect, "Regardless what follows use common sense and airmanship". That statement is applicable in flying, in combat and in life (my opine).
Cheers,
Biff