Flintlock62, you are correct.
To all,
I'm glad the Part 5 of the Pan/Vent Experiments is a part of the discussion. I hope you noticed the last paragraph or two where some of the conclusions are drawn.
"In my tests the pan was ignited by a copper wire heated red hot. In the real flint world the sparks need a bed of powder on which to land, and this must be part of or priming procedure. This means that when I prime my locks, my emphasis will be close to the vent rather than away from it, but the bottom of the pan must have sufficient prime for sparks to land in. Thus, how well a lock places its sparks in the pan becomes an equally important consideration."
I moved prime up against the barrel with a pencil eraser. Obviously, I'm not encouraging that. I went through a lot of steps to eliminate variables for the testing that I certainly don't do for real world shooting. When priming my lock, I dump powder in the pan just like everyone else. I do slap the side of the lock to make sure there is priming up against the barrel. What I don't do is try to move prime AWAY from the vent.
If you have questions about my methodology, I hope you will read the 6 part article all the way through. I jumped through a lot of hoops to keep variables from showing up in the numbers, that a shooter would or could never do. Please note that in Part 3 there are photos that show the strength of the fire entering the vent from different priming locations.
And last, I want to say that information learned about where I prime, wasn't the purpose of the article. I started out to test the effect of high or low vent locations and realized that where the prime was located was a bigger variable than the vent height.
Anyway if you read the whole thing, you will see where my mind was at when I did this. BTW, the conclusions at the end of Part 6 was meant to summarize the whole battery of experiments.
Regards,
Pletch