I converted a 9" Tucker by using the outdoor no more nails and by cutting down a bentley stock,i cut it flush over the tuckerand then drilled through the bentley into the pre cut holes of the tucker.When doing upstairs window`s like i said the brush seems to judder across the glass unlike other brushes i use it`s difficult to know whether you`ve cut into the corners especially on first cleans,i found it virtually impossible to clean window`s with it unless your prepared to do the majority of the frames everytime,don`t get me wrong i do do frames but but with opening vents everywhere you have to careful with that brush.To be honest i didn`t like the brush on the whole if i use it it will be on leads or freshly painted georgians as it`s so soft.