Greedy Angles

[Mook]

Well, I have been distilling (mostly rum) for almost a year now. I started aging on charred oak about 4 batches ago, and was aging at 47% then diluting it to 40% after 3 months, and have been happy with the spirit so far. I aged a batch starting at 45% in a different container that allowed for more oxidation than the other container that I have been using and it has been pretty dry. Well, after about 4 months I am left with a super smooth, yet low in ABV rum. Its 35% without diluting.
Is there a way to get the ABV back up to 40, or should I just learn from my mistakes and drink as is?
Needless to say my next batch is being aged at 60% like the pro's do.

[beelah]

You could add some higher proof un-aged rum, but would likely dilute the flavour some what, but you could then age it a bit longer and wait until it is where you like it. The other option is to just enjoy it now...and if you mix it with anything, then just add a bit more.

[Odin]

Wood sugars extracted from your wood could throw your reading off. In a closed (glass) container (contrairy to a breathing, relatively open wooden barrel) you may loose 2 to 3% in reality, but not much more.

Odin.