I've only used the green ones made for Viking. Have no issues. Got a few of them as part of the machine purchase. I also got a book full of coupons for needles/bobbins/etc. at the time of purchase from my dealer. Stocked up on those goodies while the coupons lasted. I have plenty of those bobbins now. The bobbin box I purchased from JoAnn's has the bobbins sitting on edge so it's easy to see what color thread is loaded.