I think it is delightful when you realise that a lot of business people are also in the game to provide a service because they love the craft. A friend of mine was told she had to pay for a major service and part for her overlocker because it was skipping stitches. Her husband was prepared to spend up to $200 to have it fixed. I took it to my LQS as he is a good technician. He found it to be a build - up of lint behind the tension discs and charged $40...