This morning I spent two hours spinning from those batts I carded a few days ago. You really can't see it so much from the photo, but it's probably about fingering-laceweight yarn. Kinda defeats the purpose of getting the jumbo flyer/bobbin because I had originally wanted to spin bulky yarn.
However, there was no better time than today to learn to spin woolen comfortably from the batts. I think I did well. I just need to hand card a few more batts and maybe I can go on for four hours of spinning!