I think if you are down the wall, the best way to make use of the time is to dabble with stuff you fancy but probably can’t do. You see some peope repeating stuff, trying it this way and that. If you ask me, they look like tw!ts. If you see someone struggling on something you’ve worked the hell out of, you can always repeat that, maybe pretending you haven’t done it before so that they think you’ve flashed it. And if you get stuck on something, just up the grade a bit. And if you can’t do that, it’s probably not you, it’s probably some rubbish route setter who doesn’t know what the hell they are talking about.