[Slim Pickens]

MasterH,
There isn't really a "correct" early strategy because any style can be profitable if played skillfully. People have very different goals when playing SNGs. Some people are playing 20 tables and want to make as few decisions as possible while still being not unprofitable. This maximizes their $/hr because they're making their money in the later rounds with superior push/fold strategy anyway and need their mental bandwidth for that. Others want to play as profitably per table as possible. They will play more hands prelfop and face more complicated decisions more frequently, but they can be very profitable if they make those decisions correctly. SNG strategy experts aren't necessarily the ones to ask about deeper-stacked play because there edge is elsewhere.

All in all, just understand that the razor-thin +EV plays available in cash games with strong drawing hands aren't often +$EV in SNGs because of the prize pool equity implications on losing all your chips versus doubling them. Master that and any strategy you play will work.