How can I adjust the Sync Settings Manually?

Answer:

To change the sync settings manuall, just click on the grey disclosure arrow under the "Sync Settings" heading, this will drop down three Sync Mode options.

Auto, for automatic syncing, Manual, for typing in the desired sync delay yourself, and Distance, which means the sync delay is calculated to be exactly one beat based on the metronome tempo.  For best results in Manual Mode, start at the highest number and work down until you start to hear significant audio dropout (what we call “crackling”) and increase the setting by one notch.  The Distance setting should almost always ensure you hear the other player even over very long distances.