I never thought about slugs. I been doing it with a 45 win.
Been there...The reason I do it is because what happened to the guy in the video almost happened to me many years ago. I was up the ladder, made my undercut, made the top cut and the branch came off clean. Unfortunately it landed on all the twiggy stuff at the end and bounced like a spring and hit the ladder. I nearly came off. It kinda scared me as I can't fly worth a flip.