Well, I was expecting to make one video of two Gen 4s performing exceptionally, but as you already know, that didn't work out. However, I still wanted to show that my Gen 4 G23 ejects great with everything I run through it.
I also made a video comparing the cycling of both pistols in 400fps slow motion. As you can see from the second, short video, the brass ejects very differently between the two. The brass is basically ejected too soon from the G17, causing it to bounce off the slide and reverse its spin before leaving the chamber.