OK, my vintage thread injector is working perfectly, I made a ripstop pillow last night stuffed with IX (cause that's what I happened to have sitting in front of me). Tonight I'm going to practice some Flat Felled seams and making some double-open stuff sacks like what my WBBB came with.
so how to I figure what size bag I'll need for my quilts and whatever else I plan on making? Thus far I've just been making random bags/pillows with whatever cutoffs I happen to have. But I don't want to make something bulkier than I have to if I can help it!