i stumbled on the fact that soft rubber soles are better. they curve over a rung better ,like a parrot foot
imagine youve just climbed up the ladder on that curved bay and about to wash the uppers .at this point the instep of my shoes is on the rung as i pull my scrubber out of the b.o.ab. - i then ease my feet backwards (a tad ) so now the ball of my foot is on the rungs ,then i raise my arches ,raise up my body and scrub the windows ,usually scrub 3 uppers ,then put scrubber back down and grab squeegee and clean and then detail the 3 windows . i usually keep my knees touching the rungs as that then tends to lean my body towards the glass
i usually place my ladders twice to do those 5 pane bays , first placing cleans 3 panes and the second placing gets the other two . ive never placed my ladder in the centre section because that would then mean placing the ladder thrice . one other thing,dont be tempted to try to find a grab point on the upper frame with your free hand -there isnt one !! (i hold on ladder tip if need be ,if blowey etc )