I've come up with a method that does not require any measuring and does not even need me to leave my machine while doing it. Did not watch the video to see if it was done the same. There are so many tools and measuring that make it so much more work than it needs to be. When I started making quilts in 2014, I bought the binding tool, but after reading the instructions decided it was way too complicated.
I'd done upholestery years ago, and put many yards of cording that needed to be attached where it came together, and it's about the same thing with putting on folded binding, just no cord in the middle.