Cheers for that tip Andy.
I think I will go for the vice versa.
Have a look at this Jonboy:
http://www.youtube.com/watch?v=E-lCoDM3JoEIf you look at how the Wagtail works you will see that wagga holds the wagtail squeegee upside down and then flips it over so that the pad is covering the blade ready to scrub the window. Then the pad is flipped back to squeegee the window.
That is fine when using it by hand, but on a high pole it's a different matter.
Wagga has said himself that using a wagtail on a pole takes time to master, and if you watch some of his other vids you will see has has modified his wagtail he uses on a pole with cable ties so that the pad flips from the top instead of the bottom.
That's why I reckon you will be better off with the unger vice versa for the job you mentioned.