Richard Stark's "Deadly Edge"

I am trying to review each Parker novel by Richard Stark as a separate entity, but alas, to me it is one big huge novel. Like Proust! One pretty much knows that each and every one of the Parker novels is a page-turner. I read a lot of his novels on the bus and almost consistently I miss my stop, due that my every sense is tied into the narrative. 
This one is slightly unusual, because the first part of the book is the heist of a rock n' roll show. Its 40 or so pages (which is a mega-section in Parker theme novel) of the actual robbery. But then afterwards someone is killing off the gang. And the violence in this novel is harsh and ugly. 
The beauty of the novel is how Parker reacts to the dangers he face. Which of course, is being totally professional and looking at the problem on a total technical level. "A" is killing each heist gang member, therefore I Parker must do this or not do this. And part of the fun is seeing a criminal mind against another criminal mind. Parker is not a sadist, but he is a cold blooded killer. His instinct is to survive. And this is in many ways a perfect crime novel.