I'm looking into S&P futures for the first time, and hoping for some clarification on an ES "point" and relation to dollars. First, when you refer to an ES point, does that equate to a single point move in the underying S&P? For example from 985 to 986? Second, how does that translate to dollars per contract, and how many contacts would be required to equal, say, 1000 SPY shares. Third, are there any advantages to trading an ES contract versus a full size S&P contract, provided that one can handle the account requirements? Thanks.