YOU are paying to have it quilted! The job of the long arm quilter is not to judge your work. That being said, your top should be square and ready to put on the frame. When I take a top to be quilted, we discuss "custom" or pantograph, thread colors, etc. I usually buy my backing and batting from her, usually is less than I can obtain it anyplace else. Don't obsess over this, just go for it! Just remember, when it's finished, post pictures here for us to enjoy!!