props to aok.
One thing I know never ceases to amaze me if the amount of hands you win without a showdown vs with... recognize that all those times you didn't show down you may as well have had 23 as the QQ you really did have.
But I'd worry about becoming tight agg (15-18% of flops OK here, but when you play recogize you generally have the best hand, play it hard) before worrying about loosening up your game - the bet raise or fold strat that AOK mentioned is right on.