Here I go referring to the old Home Ec. class again. Seemed we learned a lot in the dark ages.
If you REALLY need to have straight of grain, you can always pull a thread and cut. Just start at a salvage edge and clip in, pull a thread loose and pull and pucker it gently until it breaks. It will leave a little line you can follow and you can do that all the way across the piece. Takes a little time, but in garment making, getting the grain straight was crucial as to how those full gored skirts would hang. I still use it for my quilt pieces if my fabric is wonky in relation to the salvage. It will probably amaze you how much it is off. :roll: :lol: