My buddy PICKLES cut up a few bourbon aging barrels today for a local brewery for some advertising pieces. These were barrels they aged beers in - from either JD or some other KY distiller. He cut out some pieces to use in upcoming brews and vacuum sealed them. I have a barley wine i transferred to 2ndary today (~10.9abv) - my question is how much of this should I be putting in the secondary for a 5G batch? I am looking for a little more than subtle flavor - I want it noticeable, but not overpowering.