Hey Im all for trying to promote proper tree care and showing how it's done, but I have a couple issues with this one and Im open to get all of your replies back. One - as others have mentioned the stubs?? come one that's a no no. as Pelorus said it, decay one way or the other. Now if a tree is healthy and has good uptake and is in good health it should be able to compartmentalize most wounds unless of course they are so big in diameter and may take many many years if ever to close up, thus introducing decay. The pruning the long lateral ends to reduce the weight thus crown reduction here on this Tulip is a bit too much in my opinion, The lateral branches need to maintain the terminal role, if you take away too much of that you will just sucker out and introduce decay anyway along with epicormic weaker branches / suckers that get big. Reducing the ends on a much smaller scale and then selective thinning and cleaning is all you can and should do, it's like topping is back right!! well so is topping sideways if it's taken that much back and worse leaving stubs and not the 1/3rs rule at least. Now it's nice to have a tall reach bucket sure is but if you are driving on the root zone of the tree your compacting the soil and roots, Matts were used I hope to minimize that, and a great climber will get all those cuts made even better than the video, but a good climber may not get out as far which isnt needed anyway.