And with that, I give up trying to explain this. A few of us have said repeatedly that a Glock is not fully cocked when a round is chambered. It isn't something that allows for interpretation or variance in definitions. It's a simple fact.
Actually, I understand exactly what you're saying and I'm really not trying to be difficult. I even go so far as accepting what you say. As an editor by profession (retired), I try to understand definitions and who determines them. According to the dictionary, the word means one thing ("to set the trigger of a firearm back for firing" or "to set the trigger back in preparation of firing"), but in the shooting world it means something else.
If a fiction writer said of a character: "He cocked the Glock nine-millimeter and pointed it at the intruder," would this be correct? Or would it be: "He half-cocked the Glock nine-millimeter and pointed it at the intruder." It may sound trite, but editors and journalists sit around debating these things for hours. (It's like the time we used the word "kudos" as a singular (which is correct), but the chief editor made new use it as a plural because it sounded wrong to use it right, so we used it wrong ago it would sound right. Does that make sense? If I were on a firing line and everyone had Glocks, and I said, "Insert your magazines and cock your weapons," what would they do? It wasn't long ago when the terms "auto" and "automatic" were ambiguous. The pistol wasn't an auto, it was a "semi-auto." But then someone would refer to a military rifle and say, "That's not an auto, it's a "full auto." Whatever we did we got letters correcting us.
So terms have to be agreed upon. Jeff Cooper was very dogmatic with his terms. I don't mean to ruffle any feathers, so I'll concede the argument. But I'm more puzzled by these terms than I was.
Thanks for your recommendations, though. I doubt I'll do anything to the gun, and if I venture into trouble, I'll just pull the hammer back and keep my finger of the trigger!
Cheers. In the meantime, I'll try not to go off half-cocked!