I find the further away from the building the easier the scrub is, as you are able to step back and forth, without much movement from your arms, but the rinse is more difficult. I do generally rinse, by tipping brush head to an angle, and using arms to rinse side to side.
However, if I stand closer (ie with a shorter pole), if find that the rinse is a lot easier, but the scrub is more work, as you have to move your arms to get the brush the full length of the glass because the pole is shorter, and there is a steeper angle.