Can i ask if by 4 table you mean 4 tourneys at one time, at the 55 dollar level?
If this is so, how is your ROI doing this (I am seriously going to assume you simply play solid for all 4 tables) and what kind of bankroll are we talking here (thousands, tens of thousands)?
Was just wondering because I was considering playing 2 tables at the 25 dollar level simply because i cash so much there...
As to your question, I believe that early game strategy is lacking in most players...they simply are either too loose or too tight. I tend to sit back and watch but also try to gamble in profitable spots (or potentially profitable anyway). Also, a good look at the beginning of the game of all the players tends to let you know how to play them near the end...