Ok,I too use whatever works with my reg machines and my Longarms, I do like bobbin Thread I believe is 60 wt{it has another number on it , Most of the thread I get has these different new numbers I can't compare very easily to 40 wt etc. Was reading along to get pointers, Anyone know anything about these new numbers??? I have to pick and guess so yes whatever works. AH FUN!!! :wink: :?