We set the tracking adjustment in such a way that MOST of the tape will track correctly. It is possible that parts of the transfer will show tracking problems, if the recording deck mistracked parts of the recording. There is nothing we can do to fix this condition.
"Rec'd and listened to the CD you made of my father's old 78 metal records from the 40's. We could hear their voices clearly. Thank you for the archival CD! That was an unexpected bonus. I am very satisfied with your work. Will order more in the future. So glad we found you."