preflop cards on sng's

[trojanFan]

looking for opinions on this. fairly new to sng's -- i've played about 150 on party and stars, single table and 2-tables. mainly $30, a few $50's. I'm ahead, but not by a lot.

i've noticed the tendency of players to limp in on a huge variety of first 2 cards, not a lot of preflop raising.
i try to stick to sklansky's chart on first 2-cards....but sometimes the cards don't fall in these quick sprints and i end up bleeding out waiting and waiting.

so the question is....(except when all out bluffing)...how much do you stray from the chart on deciding which hands to play?

thanks!