It allows him to set up a virtual machine, install whatever his operating system is, install AC in one or two different places and sync to his heart's content. I know I did it multiple, multiple times just for fun about 18 months ago. You can search it.
I think it kind of goes along with testing backups. I have seen quite a few posts from users testing backups.
You can do it with your own machine by just making your own machine the database temporarily. In those instances, I change the extension to the database on the real server to something like Amazincharts.obama so there is no screwing that up.
I, personally, would not do sync without testing it myself over and over for two reasons:
1. To make sure it works as advertised, and
2. To make sure I understood exactly what I was doing
And, like anything else in a test environment, I would try it every which way possible.
If you don't test it, you're going to screw it up.
OH AND I JUST READ YOUR QUESTION AGAIN. IT DOESN'T DO ANYTHING TO MAKE YOU NOT HAVE TO SYNC. IT JUST HELPS YOUR MAKE SURE YOUR SYNCING WORKS PROPERLY.
