I made a very nice imperial nut brown at the beginning of December (10.7% abv) but it is not carbed like I would want. I tried carbing with maple syrup but probably did not add the right amount. It has a slight carbonation, but not enough to have a nice good head on it. I was thinking about adding a half or quarter of a carb tab just to get it to the carbonation level I'm looking for, but not sure how to go about this. Theyre at room temp now, but I'm afraid that it will relaese more co2 if I open it up to drop a carb tab in. Should I chill them first then drop it in to keep the co2 in solution, or keep it at room temp first? My fear with chilling is that the change in temperature when I drop the carb tab in will release more co2 than if it was left at room temp. Or should I chill both the bottles and carb tab and then let it warm back up to room temp together?