Seems they should be able to tell you that it is good with some addendums or not. Might I suggest you ask the dealer to research if the existing TM is still applicable or if their is another one. They should be able to find out as they will need the latest to be able to work on any of the 2011's.:unknown:I called the technical manual folks and asked about the CD version for the 3720. It is TM2365CD. Both the hard copy and the CD version were produced in January 2008 with no indication of any revisions or updates. Because of that I just wonder how useful they would be considering my new 3720 will be MY 2011. Any comments?