Ok, I've decided to paint my house myself. And I have some questions. I will post photos below. I know the house needs to be pressure washed before I start. And I figured since most of the paint just rubs off by rubbing a hand over it, that pressure washing it would get all but a little off. But the guy that came to give me an estimate said that he wouldn't want to use too much pressure on it, because the wood might "hair-up" meaning, having a shredding effect. and make the painting difficult or possibly make the paint not last as long. I want to do a good job and don't mind working, but I don't want to waste time scraping the whole thing by hand if I don't "need" to. What should I do? Thanks!