So spending a lazy Christmas afternoon cleaning up cameras. My Koni Rapid came with a 120 back that is pretty beat, back door keeps flipping up (fixed that with tape) but luckily it shot well with proper spacing.
Awhile ago I procured another one for cheap, that looked pristine, but thought it was locked up. Thought about a CLA but it seemed to expensive and I was too lazy at the time. So today I'm looking at it and notice I can't hand crank the take up spool. Gently took a pair of channel locks to the lower metal wheel and got her moving. Now I have a near perfect one and my older one for backup!
A great present to myself