Dazmond- even three years ago our job was very different because the poles were so cumbersome and the brushes were for washing vans not windows.You come along,. go wfp and never give your brilliant kti a second thought.The ionics stuff was pretty good if you coiuld afford it, but for the rest of us you had to be a weight lifter.A pole going over a cons horizontal at thirty foot with a heavy brush is probably something you will never know, and believe me you wouldn't want to.
Thanks to anoraks such as tim, jeff brimble, alex gardiner, luke (rupert the hair, remember him?) you have fabulous and ever improving kit.Get some work at 60' and then say it's just a brush, start caning your domestic round and need to put the hammer down and then say it's just a brush.
High end earners use high end kit.It's about lightness and usability, but ultimatley it's about money, and i think you'll find there are quite a few money anoraks