Are the numbers moving around a bit from number to number? That's due to the proportional spacing that is created in almost all effects. One thing you can try is unchecking the proportional spacing check box.
To really correct the bouncing numbers result, you need to use a mono-spaced font.
"I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work."
---THOMAS EDISON on inventing the light bulb.