I have, and it was my favorite thread until someone on the board recommended Aurifil. Good as CT cotton thread is, Aurifil is less linty in my machines - Pfaffs. I clean the bobbin case (and everything else in my machine that I can reach) when I change bobbins. BUT I know lint also gets into the machine where I CAN'T reach. That's why I take my machine to the dealer once a year to have his people clean it & do anything else that's needs doing. You'd be surprised if you could see how much lint gets in there!