[scorpion_nz]

I think the size of the preflop raise is not universally standard across all of the SnG games (even at the same buyin). For example, you might find that a table is full of people who will cold-call 3BB with very marginal hands, but not 4BB (or 5BB). I think it's an adjustment you have to make based on how tight/loose the table is.

I'm not really experienced at SnG's yet, but in my limited experience, 3-4 BB seems to be about right at a full table. Although, I have had tables where people were routinely cold-calling 4BB, and others where nobody was calling 3BB.