I've only brewed one braggot, about 5 years ago and it was from the second runnings of a porter. I didn't take any gravity measurements, or any notes at all. It was a brewing session that taught me lots of lessons, but the braggot turned out great. I think it did but then it's the only braggot(homebrewed or commercial) I've ever tasted so what do I know. A kegged it and drank 1/2 pints from it for 2 years, then bottled the remainder to free up the keg. It's now been bottled for 3 years and is still delicious, but it's a very unusual flavor.