Originally Posted by jaciqltznok
so for those who use the BL in the bobbin are you NOT using a cotton thread on top either???
or do you use mix, cotton on top and poly on the bottom?
Of course I use cotton on the top....you can use any kind of thread with bottom line in the bobbin. And it is very fine and very strong....just try to snap break this thread....the rule of fine=weak is not universally true.