Making a Chianti from the Selection Estate series and step 4 says to rack again into another Carboy. I only have 1 Carboy, therefore is it necessary to buy a second Carboy for this step? Can I skip this step and just leave this wine be for another few weeks before bottling? Also do you usually or find it necessary to add extra metabisulphite powder if you were going to age this wine between 6 mths to a year? Thanks!