I enjoyed reading through this thread! I'm a pretty new long arm quilter so can't respond with a lot of experience behind me. I do think there are going to be times when I'd like to use a batting with a higher loft - not necessarily as much as I guess the high lofts currently available would give however. That being said, I've seen lots of high end, really proficient quilters mentioning using two layers of batting to get the look they want.