Our LQS always makes sure the selvages meet and they straighten the length out to be sure their cuts are accurate. I always come home with a straight cut edge and its ready to begin making strips or whatever. This is the only shop I have ever been in that goes through that much bother to make sure their cuts are straight.
I think this is why there are always customers in the shop, they know they are being treated the way the owners want to be treated.
I don't tear, but know some people who do.