FP26, I don't believe anyone has stated the barrel should be moving in a downward path through contact..
You may not have said it, but that is exactly what the pro's demos show. Down through... It's what I have been trying to point out for months. "Swing down" as a hand path? Fine. (Honestly I like the qualifier that @julray uses, adding that the amount of "down" will depend on location -- sorry if I misquoted you julray). "Swing down" as a barrel path? Bad.....
I'm glad we are finally on the same page here. I have been trying for months to get you to acknowledge this one simple point.