I just put together a quilt my mother started years ago -- ironically from an Eleanor Burns book. Mom had already torn the strips for a log cabin quilt. I will NEVER tear fabric again!!! #1 reason -- I don't believe it saves you ANY time. It's just as fast to use the rulers and rotary cutters.
#2 reason -- an INCREDIBLE amount of threads are the result!!! I battled those babies all the way thru and now that it's on the quilting machine, I'm STILL pulling threads.
Nope -- I don't recommend it...