Text on a banner

Am I the only one that seems to have this problem? I am going back to fix some texted I have made, He wanted me to shrink it down some and add a drop shadow on it. So I bring back up the PSDs one by one but here is the kicker. As I am doing them they all are coming out a different size even though they all say 32.88 they look different I do not get it??anyone have any tips or tricks on this ? I have back spaced and re typed them and still not the same ?? UGH