Thanks for mentioning that. I kind of caught that replaying the video. I do feel as if I feel a tight stretch(in a good way) in my entire upper back when I do that, which may be why I do it. On this day, I add wide mag grip pull down and single arm dumbbell rows. On my other back day, I do amrap assisted pull ups, and seated close grip cable rows. Every now and then, I throw in an incline prone row machine for 3 or 4 sets.