I saw all of that as well as the SEM ignition up grade , switch upgrade with protective ear on handle, two screws instead of one for air filter, last version muffler , and a couple of other things I can't call to mind right at the moment . What I could not get straight in my currently overloaded mind is if any of the models overlapped the Mag II and would have also had the upgrades . I figured it was not a regular 056 AV because the tag is totally different on this saw but was the same layout used in either the Super or Mag II .
Have been through the tech notes and will be going thru them again but haven't tackled the IPL's yet .