I get the sweep, is there a skewer in them when this is happening?
Yep, I skewer them before cooking in order to organize them.
You are kind of doing what this guy does at the 1:40 mark in the video?
https://youtu.be/WEbAQSbOHqw
What I do isn't like the video. He cooks them unskewered. I don't like that 'cause I can't be certain that they all get turned properly when I want to sear the other side. Skewering also keeps them from falling through the grates.
I still don't get the "sweep".
I'm not doing a good job of explaining this.
1) I skewer them so they all hang down and swing.
2) I lower them so they just barely touch the grate.
3) I move them to the side as I continue to lower them (the "sweep").
4) Now they're on the grill all pointed in the same direction.
5) I lift them from the grate when the first side is adequately seared.
6) I repeat the process to the other direction to sear the other side.