I recently posted a picture of a quilt top that I was given to quilt. After laying out the quilt top on the floor it became apparent that this top has issues. The wavy borders were very noticable and the entire top is just plain wonky. Anyway...I've decided to take of the borders and fix that issue and just deal with the rest as they come along in the quilting process. So I take the three measurements top 76 1/2 middle 74 3/4 bottom 74 3/4, and going the other direction, top 75, middle 74 3/4, bottom 76. I've never had a quilt top off by this much. Theres no way that I can fix the issues in the rest of the top to make it more square due to the design so I just have to re-attach the borders, cutting them down to size. Can I still use the basic equation of averaging out the 3 numbers? and would it make a difference which side I put on first? Thank you so much for any input.