Give me a standard roof and I'll have the panels up clean and square by afternoon. But then there's the steep slate roof, or the site where nothing is where the plans say it is, and I slow way down. I don't want to drill a hole in the wrong place on someone's house. The tricky jobs still make my stomach drop before I climb up.
More people experience this than they realize.
You handle standard installs well, but the odd roofs and hard sites still trip you.
If this sounds familiar, the Library can help you find the bigger picture.