I have only ever used 1 jelly roll and it was just one from Hobby Lobby. One of the strips in my roll was a little larger too. I didn't realize this until I put my nine patch blocks together. My squares don't line up perfectly on just the squares with that particular fabric. All the rest line up perfectly. I checked my seams and they were right on, so it has to be the strip. I wonder if you called Moda if they would send you a coupon or a free jelly roll or something. Some companies will do that. I know someone who called Pepsi because she got an empty can in her 12 pack and she gets free pepsi in the mail all the time now.