C,
That would be a thoughtful strategy. I have often learned more when I was having a smoke on the bank, than when I was casting. I watch a lot, and learn a lot while doing it. After about 20 years, it pays off. But that's only because I'm a slow learner.
You talk about trying to read water. I see that you're a geologist. Think about steelhead as lava that run upstream. Like lava, sometimes they run quickly, sometimes they collect. There is always a reason they are in the path that they take. Think about funnels.
Think about rapids as gravity, but in reverse. Thinkabout how lava will puddle out after a fall. That's how fish act when they come through a bit of fast water. First they are concentrated, then they spread out. When fish move up through rapid water, the first thing they do when they clear the rapid is pause. Somewhere. Where? They get oxygen from moving water, so they like that. Where is it? Where is the first deeper spot, with moving water, after the rapid? Where is the first moving spot after a long spot of slack water?
When moving upstream, they tend to be within 20 feet of the bank. When holding, they tend to be over large (6 to 10 inch) cobble that disrupts current flow and gives them a disrupted flow to hang in. They don't feed much, so food presentation lanes don't matter. They want enough water overhead so that they feel safe, but 3 feet of water is usualy more than enough to do that. Obstructions such as rocks may or may not be necessary.
If you feel like a flu might come on during the week in the next month, PM me, and we might be able to work out a water reading lesson. I'll have to blindfold you and swear you to secrecy first, but you don't need that firstborn son anyway. You have to be ready to lift anchors and such.