No, the whole purpose of the threaded save is that it saves items concurrently in a thread started at the begining instead of saving them in line with everything else.
Thus this:
Code:
Thread saveThread = new Thread( new ThreadStart( SaveItems ) );
saveThread.Name = "Item Save Subset";
saveThread.Start();
Calls SaveItems() from a new thread.... The old thread then continues on to save mobiles, etc.