How different is a small blind call from a Button call?

[ThaHero]

You are correct. It is discussed breifly in the Preflop section. After you get past the chart, you'll come to the section Notes on Recommendations. I've read that section countless times lol. In general it says you should play looser in blind structures that are 1/2 the bb. In games that are like 2/5 the bb you should play tighter.