I used to use ARC and had many thread breaks. Now I use ISACORD and ISALON (both 40 wt) and Madeira (60 wt). If I get a break now, it's definitely design related (i say that with great confidence) In addition, I added a "dehumidifier" to my shop and run about 50% rh. I believe this has also helped as well. thanks...bob Island Embroidery Qualicum Beach, BC Russell wrote: >Just curious what brand of thread everyone is using? I tried a spool of >Robison Anton poly and found I get less thread breaks, does anyone else think >it is better then the Arc poly? >Russell Silva >R. S. Embroidery >508-222-4433 > > > >