For my sins I have just purchased one of these second hand. I am short waisted and garments like t- shirts are often too long on me, so I was hoping this machine would enable me to shorten them nicely. I have done basic sewing before, but have never used a coverstitch machine. I tried to follow the manual, but got a bit lost with the threading and I don't think I did it correctly. Is anyone familiar with this same machine and might be able to show me the ropes when restrictions allow, or have a chat? I really hope I haven't wasted my money!!