could any one tell me how to get good results using a extending pole.I mean the ones that you put your applicator onto the end and wash the window and then do the same with your squeegee and remove the water. I just did a conservetory roof for a customer because they asked me to and this was the only way i could see to do it as i could not rest ladders against the guttering that went alround the edge.It was a glass roof and my results were terrible!!! i was so embarresed as it left big streaks and smears all down the window.