I did some Apfelwien like this recently and it's part of my pipeline stocking. I let one age for almost four weeks (3 gallons) and a last gallon i'm gonna give two months. I needed the other primary to start a new hef. Girlfriend apparently wants me to do some IPAs so i'm dry hopping a red ale and then gonna get an IPA going. Fingers crossed to have about 100+ bottled by the middle of the month.