Quote Originally Posted by Ed_Davor
I've also practiced attaching it back to the spool and rolling it back.
Just in case this means what it looks to. You don't have to rewind the film back on to its original spool when it has been exposed, in the way you do with 35mm. You just wind it all the way on to the take up spool when it is finished, then take that out and replace it with the now empty spool your film came on. In other words, the take up spool is always the release spool from the last film that went through the camera. Sorry if I misunderstood here and am trying to teach anyone to suck eggs.

David.