I've been debating this with my pops, who's also a man of the cloth, so all opinions are welcome. Once you've bladed a window, who here actually wipes down the edge of the window?
Now i know this might sound a little mundane, but i've worked with blokes who don't bother, and who don't seem to get any complaints. I've also worked with others who are really careful not to leave a trace of water down the sides.
I"ve tested this out, and obviously using dirty water leaves a mark, but it's veeeeery small. Is it worth it? Although it may only take a few seconds to do, add it up over a whole job, and it can make a big difference to your speed.
This is where everyone laughs at the bloke who doesn't wipe - isn't it?