I now have a couple different 1 gallon batches of blueberry and peach wine going, the first started Sept 2nd and have been starting others since. I add a campden tablet every other racking and rack every 3-4 weeks. I have potassium sorbate to use in conjunction with campden to stabilize, but should I wait until bottling to stabilize with potassium sorbate? Or should I add it with campden at racking and wait another 3-4 weeks to bottle? Would just campden and a month in the low 30's be less likely to impart off flavors or should I just use the potassium sorbate and leave it at that?