I would like to add as well that when you store them away to bulk age, REMEMBER them! I just dumped 3 carboys of pretty expensive kits (all Mosti All Juice kits, one a Meglioli) that I had stuck in the closet of the utility room and forgot all about them until I found them yesterday. They have been there a good 2+ years with no attention and had oxidized. I had added no extra k-meta and one of them the airlock was dry. I had put them there because the regular wine making area had no extra space at the time as I had a lot of beer fermenting. I was going to move them back after I finished the beer but plain forgot them.
I also found 6 cases of bottled wine I forgot I had in the cabinets under the regular wine making area. I popped one open tonight, a 2006 Crushendo Super Tuscan and it was fantastic. Needless to say, I sat here tonight and did a lot of reminder alarms in my calendar program on the computer tonight so this will never happen again.