Depending on the activity I'll use one of the firmkeys or hard buttons. When using a firmkey I go with either Firm1 or Firm5. Being on each end I find them the easiest to get to quickly by feel alone. If I'm using the firmkeys for transport controls I'll generally use the Home hard button as a back button if needed as I use the Power hard button throughout my configuration file as the Home button instead which takes you back to my Activities page. This allows for the actual Home hard button to used for more commonly used functions as it is grouped over with the other hard buttons and cursor pad. That being said, if you'd like to check out my configuration file in PEP v2's Simulator feel free to hit up the thread here where I have a PackAndGo version of my file available for download. There is a link there in that thread providing instructions for how to run the PackAndGo file in PEP v2's Simulator versus having to download it to a TSU9600.