As a side note, the way I test this is to solo a drum track in playback within Realband, I then select an empty track and place my headphones over the microphone that I'm going to record with and hit 'record'. I record 30 seconds or so then compare the recorded track with the original drum track and expand them out so I can easily see each beat. I compare the recorded drum sound to the original then go back to Edit/preferences/ audio tab and change the 'Recording Offset MS' value if needed on a new recorded track until I get a very close match.

Doing it this way takes out the human variable of me playing the guitar while listening through the headphones.

Hope this is of some help to you as it took me quite awhile to figure out why I was always 'behind' when I recorded my guitar in Real Band.

Del