i first used a 6metre pulex alloy pole but it was a beast ,too flexi and heavy , i read on this forum about fish poles  so i got a Maver roach fishing pole , it was an 11metre modular  but i shortned it to 9 and fitted a wagtail pole cap onto the end. its light and it was £50 from ebay  .THis  i  use it  mainly above conservatories  but also  very high first/2nd storey as on old rectorys  . i use the wagtail angle arm with a 14inch flipper and  its best to stand way offto one side rather than directly beneath the window, then flipping the wagtails far easier .im left handed so mainly i standto the left
i numbered each section with siver foil tape so i can assemble it quickly