To day for a bit of motivation to pick up the bat and keep swinging I flipped towards the end of the book and read some notes by the author. A line jumped out at me about the book is aimed at giving a 'brown belt', not a real programmer, but ready to move into the real stuff and pick up real books.
Chapters 0 - 25 I had some bumps along the road with, things I just didn't understand but forged on and came back to later, sometimes figuring them out, sometimes not. I have a short list of mild stumpers that will eventually come clear with practice, I'm sure. But Chapter 26 was an exam. "Here's a program. Debug it, even if it takes a few days."
It took me about ten minutes, suggesting all that LSL gave me a green belt to start with.
I've moved on into logic operations, the section there was way, way better than any other logic table tutorial I'd seen, or maybe the student was ready, and then into if statements and loops, something else I'm an old hand with by now and am doing anyway for the syntax help and inevitable moments of 'oh god, I've been doing this wrong all along'. Sort of like the logic tables. :)
So far, so good.