Originally Posted by emitnulB
Depends on a million different things, but if you have any cash game experience you'll usually be alright playing the 75bb and 50bb levels with the same ranges you would play in a 100bb cash game. You also have to recognize that in a cash game you're adjusting your ranges based on your opponents so in any given spot you can be playing really loose or really tight depending on action ahead of you and the tendencies of the players behind you.
Typically your big edges in SnG's come from understanding icm near the bubble so if you feel like your opponents are going to have an edge in deep stack play you can play extremely tight early and just start using your knowledge of icm near the bubble to get your win rate. The slower the games are the more of an edge you can gain in deep stacked play though.
What sort of ranges do you play in a 100bb cash game?
'Adjusting your ranges based on your opponents' so at lower limits where players are generally looser, stick to a tight range?