Hey everyone, I recently felt a bit neglectful of my K1000 since I have been shooting and experimenting with my digital set up. I threw a bunch of rolls of film into my bag and headed off to the mountains for day of hiking with it. After about 4 photo's I went to advance the film but it made this horrid grinding sound, and the winding spool didn't spin. I had heard about K1000's winding gears breaking, so I was truly scared of that being the cause, as I am a student and can't front the kind of money it would take to get it repaired. When I got home, I opened the back and sacrificed my 4 shots to see what was causing it. The film advancing sprockets had torn the film and wasn't advancing the film at all. I was shooting with Fujifilm Superia X-tra 400 since it's cheap and I can buy in bulk from my work. I've never had this issue for the first year of shooting with it, but I was shooting with expired Illford film from a previous job. Is this a common thing for Superia X-tra 400? Do all cheaper films tend to tear at the sprockets? Is this a common K1000 issue? If so, what practices do I have to adopt to avoid this in the future? Thanks so much for your help!