Have I just run lucky at $1 $2 cash games?

[greekgooner]

I seem to win more often at these higher buyins than I ever did at .25/.50 and .50/$1 cash games. I don't know if its because the money means more or that representing a hand is given more credit but I seem to play much better. Because the money is higher I play much tighter and am prepared to lay down more top pairs/two pair hands. At lower levels I was finding myself calling a raise just to see if I got lucky.

Do you think this is a good level or should I go back and grind the lower levels properly? Although I feel comfortable at this level I have only played around 1k hands