I only use pressure washer on frames and guttering now, cuts the time down no end.
fascia and soffits I usually use Truck wash apply it through the pressure washer then give it a good blast with my 25 degree nozzle. then give it a spray with pure water to polish it.
Works a treat.
Plus when you start pulling out all the kit from the van, the customer would be less inclined to moan about how much you charge lol
I have cleaned frames and guttering manually with a trowel and rag, when it came to paying, the customer seemed to be rezentful to pay that amount for using a set of ladders for a couple of hours.