[Irieguy]

The problem with this play is that your hand becomes very transparent.

If somebody limps from a position when it is almost impossible that they are trapping with a big pair, and then pushes when the pot gets sweeter from a few weak raises and calls behind... what do they have?

So, you give all the other players the option of racing you when they know that your range is very narrow. This makes it difficult for your opponents to make a big mistake, and because a SNG involves only a few hands, you really want to create situations where you are giving your opponents a chance to make really, really big mistakes.

By seeing a flop here, you will have opportunities where your opponents can make big mistakes for their whole stack. You will lose a few chips often, and gain a bunch sometimes. By pushing preflop, you will win a few chips often, and lose a bunch sometimes. You will rarely win a bunch, and if you do, it will not be because you forced your opponents into a horrible play. (The exception to this would be if your opponents were particularly likely to call with smaller pairs, and fold with overcards. But this isn't typical at the levels you play.)

Irieguy