I randomly chose some bottles for myself after the whole batch was bottled. He had put his in the basement at about 64 degrees while my garage was about 75 degrees. I did bottle a little sooner than I usually do. So, what I'm hearing is that he should wait a while longer.
Recently made Dunkelweizen and kept some for myself and took some to my brother-in-law. His was flat and mine had a great frothy head. All was bottled at the same time and the only difference I can determine was the 4 hr car ride. Anyone ever hear of yeast getting car sick?