Enjoy your videos Luke. Hey, one thing I and employees have always done is start with a window that is more discretely located ( Like a garage window ) and test a small area at the bottom 1/3 for any Fab Debris. It’s true that they can vary, but in my experience they will run pretty consistent.
This works - I have actually caught the FD on a window like that and, even with a waiver, it will save your butt. I just wanted to add that to anyone new ( or even Old Timers ) about CCU.
Again, Thanks !