u/trashpandob

So I have a 750QE and I used to mainly use Guttermann 50wt Sew-All poly thread as my main go to thread. I had no issues with it, it was readily available at my LQS and a good price. Then I took the class that came with my machine purchase and they told me I should be using Aurafil or Mettler. I got some Aurafil 50wt cotton and I honestly hate it. It makes so much lint, it keeps breaking and it always curls at the needle like a ribbon does when you pull scissors over it. I’ve tried rethreading the whole thing, I’ve tried a different sized needle, nothing helps. It’s driving me nuts.

TLDR; am I hurting my machine by using Gutterman poly thread? Is there poly option from Aurafil?

Any insight is appreciated!