Plastic Spools Doing My Head In!

[Stegosaurus]

Are you moving both hands at once? I hold the left side steady and use the right hand side to draw the film onto the spiral, so no chance of pressing inwards on the reel. Just a thought.

Frankly I couldn't say exactly what I was doing, apart from cursing the film, because I didn't really think about it. I shall be more conscious of my action next time.