threads on back of quilt top...
...do they need to be trimmed?
I have been asked to finish a quilt for a friend who has given me the top, batting and backing. She has not trimmed any of her thread ends on the back of the top (about 3-4" long), and I don't know if I need to trim them or not. I always trim my own as I go - mostly because my sewing machine will eat them if I give it half a chance! - so I haven't encountered this situation before. The backing is dark fabric and the batting is dense, so the ends wouldn't show through...but I am worried that there is some other reason I need to trim them of which I am not aware.
Thanks.
Alison