My problem with the jelly rolls is that I'm a pre-washer. If you try to pre-wash jellyroll strips, even by hand, you can get enough fraying to make them unsuitable for something that needs the full finished 2".
Monique in TX stash-fondling in anticipation of starting a big applique quilt, but not relishing the washing--and there are lots of hand-dyes, so I HAVE to!