TreeTopKid
ArboristSite Guru
Mike if I have to climb a medium size tree for trimming I use a ladder to get past the trunk wood then a two stick pruner(8 foot poles) That's 16 feet plus the head and run a loop knot and drop it over the desired branch and pull it down with the hook on the pruner. Large tree's I use the big shot and mars bars. Pole saws are not for use in a tree too big and awkward. I use the pole saw mainly for grabbing lower branches and getting the crew started working.
What about older trees with masses of living brittle wood at the ends?