I went through the Unofficial Rulebook (though not very thoroughly) and I found it very nicely done. As far as the contents of change are concerned, I think that all clarification is very nicely done and clarifying enough

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I would like to point a few things about the aesthetics of it.

I don't really like the color of added clarification. I'm not usually the one to complain about such things, but I think the color is too strong. While I was reading through the rulebook, each time I saw the red color, I'd skip whatever I was reading to read that. I think it should be a weaker color so it doesn't leap out, but strong enough to point out that this as an added clarification.
The only other thing I found worth noticing is
? unless strength is tripled part of the rulebook. Just the title could be moved to be above the rest of the text, because its current place confused me a bit at first look. Especially since it's red.
I'll give it another look, but I think it's good. Very good.

to Tbiesty