Charles, OP, I checked the first of my 3 2x3 Pacemaker Graphics I could grab easily. Their are no wire hangers attached to the bellows, the bottom of the bellows is smooth, shiny and seems undamaged. The pages etc. in the manual that I referenced are pretty clear. Charles, please verify that 4x5ers bellow have loops or hangers attached underneath.
OP, I use my 2x3ers with cable releases attached directly to the front shutter. I see no way to fire a Pacemaker Speed Graphic's rear (focal plane) shutter except with the body release. Removing the cable that ran from my 2x3 Pacemaker Speed Graphic's body release to the front standard had no effect on the body release's ability to fire the rear shutter. In fact, the body release worked more smoothly without the cable.