Read the book in one day, lovely rainy day here

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Some of the descriptions you suggest are correct but not necessarily derogatory. In fact most of them match the widely held views of most of these guys, especially Carmichael, JV, Armstrong, Bruyneel.
I think even JV describes himself as a nerd and I didn't feel as if it was used in a derogatory sense by Hamilton. If anything JV comes out quite well as always being more questioning and wary of doping.
Don't think Hincapie came across as lazy either, just very good at conserving energy which the pros see as an important factor.
The little anecdote with Voigt doesn't potray him in a good light but its hardly character assasination either.
I dont see how you could think that Hamilton potrays himself as being heroic. That is definitely not the impression I got.
The other thing I got from this book is that it seems to finally dispel the notion that Girona was/is some sort of doping haven. Hell even the guys living there travelled to other places to get their fixes. Hamilton always travelled to Valencia(Del Moral, Marti) or Madrid(Fuentes).