See expert editing and playback tips with Final Cut Pro X from http://fcpexchange.com.
In this clip Thomas Grove Carter from Trim Editing shows ways to edit and playback clips simultaneously in Final Cut Pro X for an Audi Commercial. This clip was produced by Alex Snelling/Slack Alice Films. For more information, visit http://www.slackalicefilms.com, http://www.trimediting.com.
For the finished commercial, visit: http://youtu.be/EiHdgE9VUJc