Pretty much the same.
From SB always 3x, occasionaly when the stacks are about ~15BB 2.5x will do the same job. From BB after SB limps 4x is standard. Only I must admit that I'm not 'trigger happy' OOP (learned it the hard way). In fact this is one aspect of my game IMHO where I really shine compared to my opponents: I'm very positional aware and it's very hard for them to put me in tough spot/first to act. Simply, avoid murky situations OOP and playing is easy. Have someone asked me to define my own style in few words I'd say: TAG/LAG in postion, weak tight OOP. Works like charm (so far).