Here's a little bounce script I made(adapted from Dan Eberts), that you may find useful.
Copy the Control layer to your text comp. Copy the expression on the scale layer of the white solid and paste it to each of your text layers(if you use the Copy expression only by right clicking you can paste it to all your layers at once). Add keyframes for you scale and the expression will provide overshoot, adjust the control layer to change how much and for how long the layer bounces.
Cool thing about this expression is you can add it to rotation or position also, don't need to change anything(though you might want multiple controllers if you are working with more than one property---so you will have to update that)
7693_scalebouncecontroller.aep.zip
Johnny Cuevas, Editor
ThinkCK
"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.