You know, I've never taken a hydrometer reading with a JAOM. I mix the ingredients, shake the crap out it and let it go until it drops completely clear. Each one's a little different - more orange, more spices, more sweetness - but they're all good!
I make JAOM when I have a little free time or a little extra honey that's easy to get to and I put it in a dark corner and forget about it. It's a very forgiving mead. In fact, I think I'll make some before work...