Your question is timely, because I was wondering the same thing (and I have only been quilting for a year). I bought some Zen Grey Moda Bella Solid in July 2014 from FQS. It is nice and thick. I needed some more yardage to complete a project and bought some more from MSQ. It arrived today and the texture is completely different. It is loosely woven and silky rather than tightly woven and thick. It is so thin, I can see through it. It feels really cheap. I checked the product codes and I did buy the same fabric. MSQ doesn't sell any other yardage lines in light grey, so I believe they sent me the correct fabric. I was wondering if anyone else has noticed Moda Bella has changed in the last few months?