I am new to LA' and check the back and batting top and bottom each time I roll to ensure there are no folds and pleats. I just run my hands over but also look underneath every time. I have no plans to quilt for others but plan to rent out time on my machine and I have already made this technique part of the teaching when clients take their first lesson on the machine. I am so sorry you had this issue and wish you lived nearer to me then you could come and quilt your next project yourself!!