I have always had better luck loading SS reels. Plastic reels on the other hand have always been a problem. In 120 I find the plastic "walk in" reels to be especially dificult. In addition with some reels that are designed for 120 or 220 use, development can be uneven. Get a good quality SS reel & practice with a expendable roll of film.Once you get the hang of it you will see what I mean. As a plus the SS reels are virtually indestructable (my newest reels are over 15 years old and work perfectly)(posted 8807 days ago)