Never had to blade off excess when using wfp its dries clear, and dont see the point to blade off when using wfp, thats going besides the point of not using ladders.
Keep calm when hose gets stuck or been annoying, when things dont go right for you. Think of nice things like the money coming in or something.
Wfp can be trying your patience when all happens but keep with it there is the other side of the coin like been quicker and not falling off a ladder etc..As i too still use both methods to keep customers happy and provide a good service for them, as been flexible for your customers, even when things dont always go as planned.