This message was posted by GF on AmayaUsers.com. PLEASE DO NOT REPLY VIA EMAIL. Instead, respond to the thread on the WEBSITE by clicking here: http://www.amayausers.com/boards/ultimatebb.php?/topic/1/385.html#000003 For the most part, 40 works fine for me too. I increase to 60 if I'm sewing on batiste or fine linen. 100 seems to also be fine. The lower limit is what seems to be imperative to the design quality. That changes with every single job I run now and I've seen a huge improvement and less thread breaks. If I get a false bobbin break, I decrease by one more. Also, my bobbin tension is like the test . . . 1-2 inch drop. =========================================================== The AmayaUsers Mailing List Website: http://www.amayausers.com Discussion Board: http://www.amayausers.com/boards Subscribe/Unsubscribe: http://www.amayausers.com/list ===========================================================