Well done nwh. I can see what you mean.
Great if you have 10 houses in a row 
I may have another look a tosh's thread from a while back and have a play over a weekend.
Bob
this is how i work
arrive at house
pull out cart ( or hose ) then i fit together the 3 sections of pole, clean the front upstairs, lean pole on fence remove brush section of pole, clean downstairs , go around back, fit brush section to pole, clean upstairs, lower pole to fence, take brush section off and clean downstairs
as you can see, i pull the end section off the pole , it takes seconds
the thing you will be amazed by is the weight of it
it will cost you 20 - 25 quid, give it a whirl, nothing to lose
i get a fair few messages over on the DIY forum about it, a recent message said his daily take has increased by 30 %, the reason, he can work the same speed all day, doesnt get to 3 and slow down with fatigue