I guess I'm not explaining it correctly. It would take a decent amount of time to copy over something in the moment and it's definitely a chore even just copying something. On site would be a pain in the ass. I get him wanting to get the tune ready before you arrive in that sense. He may also actually be developing his own tunes. The software does allow for one to modify many settings and create their own tunes. So who knows, maybe he has developed something. Their are many out there doing so, like
@UploadAdventure and others.
The maps are definitely a pain. I follow along in the multiple threads out there and have made plenty of minor changes to my own tunes, mostly with mediocre results.