harrington talks about tournament speed in his books too...

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The only place where I think tournaments speed makes a difference is my willingness to push small edges or take coinflips. In the case of a fast structure, my chances to double up without coin flipping is reduced because there are less hands available to me.

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Bingo. That's 99% of it, IMHO.

That's the objective part, anyway. There's also a subjective consideration. If other players are letting themselves be influenced by the tournament structure, such that their play is consistently wrong--their play is too timid, or it's too loose--you can take advantage. That is an indirect effect of the tournament's speed, although not an effect that necessarily follows from tournament speed. Any book or other advice that recognizes common patterns of exploitable play is going to be valuable.