Thanks for the video as I just had issues with tension yesterday and my top thread was too loose as it showed on the back. Of course I'm using 2 threads in the needle right now and all was good on the 1st design but changed somehow on the 2nd design. In the past I never had to check the bobbin tension but seems now I do. Again, thanks for the video as that helps me figure out which tension I need to adjust. I always forget which is which.