NO, not at all. you simply sew sew sew, leaving barely any thread. Then you cut them apart with virtually no other trimming needed. it's fast and thread-efficient. there is also a handy gadget that holds a seam ripper upright and you simply hold the chain, cutting between each with this gadget. I don't use it all the time, but when I do, i think--well worth the 8 bucks it cost! and, you're welcome. 8^))