I have both BD I and BPD. I still need a mood stabilizer for the long duration mood swings even though it doesn't help much with the short ones. I tend to need therapy and just plain perseverance to get through all the little highs and lows.

I'd recommend Depakote but it isn't weight neutral. I gained weight on it. It works for me though; I haven't been manic for about a year. (Fingers crossed)