Read the site. He suggests water temperatures that aren't cold enough to make you shiver. In fact, if you're shivering, you're way past the 80/20 point. This is

Read the site. He suggests water temperatures that aren't cold enough to make you shiver. In fact, if you're shivering, you're way past the 80/20 point. This isn't woo woo crazy shit, he's done his research.