i'm holding on to my only machine with a regular bobbin case just for this "someday" project. no way i'd try it on a drop-in!
they're a bit pricey, but i think it would make sense to buy at least one extra bobbin case to guarantee you'll always have one that's set properly for regular thread.
i kinda wish auntluc hadn't brought it up and reminded me. that's all i needed. one more "man-i-really-want-to-make-one-of-those" haunting me. [sigh] :roll: :lol: