Just wonder how you guys set up the camera when you change the film back in the middle of the roll. Do you wind both film and shutter and remove film back? or do not wind the film? I normally wind film/shutter first, then change film back. After I attach the new film back, sometimes I'll have to wind the camera again. I was somehow afraid of having double exposure. Bronica claims that the camera and film back are smart enough to know the state of winding. I just want to make sure there is no double exposure or skipping frame.