In the Profile module there is an option what to do with synced units, default to do nothing. The way I understand it, if you change this to only profile synced units, it would not profile anything you manually place in editor; or, if you only want some to escape profiling, sync them and tell it to ignore synced units. Not sure why it wouldn't be working for you... Have you tried the option to only profile synced units, and leave yours unsynced?