Not sure if I have the terminology correct but the two vertical edges of the windows (stiles?) often have plastic trim covering the gap between frame and brickwork. I still clean majority trad so it's easy enough to wipe most with a cloth. When I do use the backpack and brush I find it a bit of a faff trying to clean the trim and I also worry about the hard brush edge marking the trim. Does any brush have soft edges that can clean the trim at the same times as the frame (and prevent marking)?