Here's an error I just found while playing around a bit, and it just goes to show how often it gets used…
If you select the Slave-1 title card for the Firespray, there is no way to add the Proton Torpedo it gives you.
Just wanted to chime in with my thanks for your listbuilder. Being able to see all the images and rules of the various cards and to get a sense of how the game plays is what led me to buy the Core Set/Millenium Falcon. Your listbuilder is essential as I now try to plan out my next purchases. Thanks for getting me hooked!