Winding film onto reels is the trickiest bit. I never quite mastered the steel reels (guess I'm not a real man) and switched to plastic 'walk-on' reels and the nylon ones.

My best advice is to pick up a couple of different style reels second hand and try them with a spare roll and see which one goes smoothly for you. You'll see what I mean.

My plastic walk-on reels extend from 35mm to 127 to 120, making them quite versatile.

Steel reels are the only ones that will load when wet, so I have a few for when I'm doing more than one roll at a time.