Thanks Norma! I normally match the needle to the thread (Superior makes it easy with a very comprehensive list), but I thought that in this case with silk fabrics but all the stabilizers, there might be a different solution. In the end it's all 'trial and error', but it does help if somebody else has made most of the errors already.
I have the feeling that I'm going to ask a lot of questions everywhere in the forum, getting on everybodys nerves, because I'm in the process of buying a machine with an embroidery module. I have safed up for years, then compared and tested machines for over a year. It's now down to two models and my local dealer has made me one of these offers that nobody would refuse, so by the beginning of September I can fetch my new baby home and start to play. After years of using a most basic machine because it was more important to finance my sons' education, this is a huge step for me.
Melly, I'm in the UK and so the products are sometimes different, but when I work with silk I put an light-weight iron-on interfacing on in order to reduce the amount of fraying. It looked like Sarah Vedeler was using something very similar.