I have recently started bottling in a variety of different size bottles. If friends are over I break out the 22 ounces, otherwise I stick to 12-16 ounces. I have notice that the head on the 22 ounces is not as good as the one on the 12 ounces and the retention is poor. I have noticed this on 4 different types of beer. I have let all of them age in the bottle for 3-4 months so I don't think its a carbonation issue persay. With that said, maybe the bigger bottles need more sugar to achieve the ideal carbonation and I should pick a bottle size. Anyway, curious what everyones thoughts are. Thanks