I'm also confused as to why the weight of the quilt would have any bearing on anything. I've never turned my quilts on the longarm. I do know that on some machines you have to adjust the height of one of the bars - I think the take-up bar, but that is due to bulk, not weight. I guess if the quilt was too big to adjust the bar you would need to turn it - is that what you mean? I don't have that issue because of the way my frame is built (Innova).