Thanks to Kathi in Idaho and Laura in IA. I do change my thread like you said, Kathi, I was taught by the person who services my serger to set all the settings to zero then knot the new thread to the old, pull it through, then cut the knot to thread the needles. Works really well.
Thanks for the tip on threading the right needle first.I guess the only way I'll find out is to try the clear nylon thread.
Have you noticed that some ready made garments and other things are serged with clear nylon?Thanks again.