The amount of whip in the poles can be a real pain...and a mean pain, physical pain, the further you have to reach from the vertical and the longer you have to have the pole extended, then the greater your risk of physical injury, torn muscles, back damage and so on.
Where conservatories are concerned I try to extend the pole with it resting on the lip of the conservatory roof, directly in line with the window if possible, and tray to move the brush head up towards the window with the pole sliding along that edge.
I usually end out extending the pole out behind me, its quicker, each section on the Unger poles are 6ft long, and as I'm only 5ft 8in (bar a half inch
), extending it upright is awkward
I have usually had to change the angle on the Unger elbow joint so that the brush is at the perfect angle to work on the window (a real advantage with the Unger setup) so that by the time you have the brush on the glass and are actually cleaning, the strain of getting it up there is reduced and also, by virtue of using the edge of the guttering you have negated the bendiness of the pole to a certain extent.
But there are also those windows where you have to get at that awkward window from the side of the conservatory (or whatever part of the building happens to be in the way), you can still use the conservatory to help extend the pole up to the window.
But the actual cleaning of a window in this situation is not good for your body it is badly and unevenly stressed, and this is the time you are most likely to injure yourself.
The strain on your body is so uneven.
I'm lucky in that I'm pretty robust and strong, but at almost 50 years old, by straining at difficult angles I am more likely to do myself a mischief than you young un's
WFP is by and large safer and easier than trad, but as more and more make the change, and probably it will become the norm in just a few years, the potential for users being incapacitated through attempting to clean windows.
I wonder how long it will take Health and Safety to issue guidlines on safe and proper useage??
Ahh well, I'm late, I need to get off and earn some money to pay for Christmas
Ian