I have many fabrics here in my home on bolts. I will simply zoom through a few bolts ripping off a section or FQ's worth of fabric. I prefer the fabric to be torn. It gets it on straight of grain.
I press well and the edge usually heals. And since I am doing tons of string blocks now, those odd shapped straightening strings are PERFECT!
Subee
http://www.subeesews.blogspot.com