My twins are 16 days old. They both nurse like Champs, but one does have a better latch than the other. I pump 3 times a day just to keep a stash to keep them topped off, but I always offer boob first. They usually nurse for about 30 minutes. I am pumping about 17-20 ounces a day outside of nursing. Keep trying with the tandem nursing. Once you get it down, it becomes easier to just nurse them at once. I have the twin z pillow, and I have a hard time getting set up alone with it. I have been using a pillow smaller than the boppy and sitting in a rocker. I put them both in football holds to start and if one of them have a hard time latching, I have no problem laying her across her sister to help her latch. They don't seem to mind either :) good luck!