@thomasjwebb @Gargron
220 is another beast indeed.
I hope you did check the backplate @Gargron . Most medium format camera's have a 120 and a 220 backplate. Usually the can be turned around to switch between the two.
Getting a 120 roll to load with the 220 backplate, is at a another level. If that works at all, it will be very heavy on the winder.