My pom melomel is about 4 months old now. I used a basic medium sweet mead recipe (I am shooting for a FG of 1.018-1.20, maybe a bit higher depending on what my future wife thinks), and simply replaced a gallon or two of water with pomegranate juice (100% pom juice, no preservatives).
I don't have my notes near me right now, but I did add more honey after the first 1.5 months, and just last night I added another 2 qts of pomegranate juice. It has a semi-noticable pomegranate flavor, but the honey is rather subdued. I will probably be adding more honey in the next few months and seeing how that turns out. Right now though, it is still pretty green, so it is difficult to decide what it needs. I believe it is around 16%ABV right now with an SG of 1.016.